Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 7237749 | Collapsible mobile platform interior structure An interior structure for a mobile platform is provided. The interior structure is constructed of a lightweight collapsible frame that can be reconfigured from a compact, substantially flat collapsed state to a non-compact, substantially sprawling expanded state. In... | 07/03/2007 |
| 7017996 | Reconfigurable chair A portable chair which, when assembled, supports a user in the prone position and comprises inter-fitting parts allowing the chair assembly to be reconfigurable, adjustable, collapsible and easy to transport. Two side panels are pivotally connected at a straddle edg... | 03/28/2006 |
| 7007615 | Collapsible shelf unit A collapsible shelf unit has a three-sided frame made of a single sheet of foldable material and separate shelves which are hinged to the sides and rear of the frame so that the shelf unit can be collapsed to a substantially flat state by folding the shelves up agai... | 03/07/2006 |
| 6752280 | Collapsible display shelving A collapsible shelving display, preferably fabricated at least in part, from corrugated paperboard. Side wall assemblies are hingedly connected to a back wall to form a stand. The stand includes foldable shelf support members that are inserted into receptacles cut o... | 06/22/2004 |
| 6641486 | Billiard table having a foldable base structure A billiard table includes a table top, and two pairs of bars having an upper portion pivotally secured to the bottom surface of the table top with hinges and foldable toward the table top and foldable away from the table top to an open position. The table... | 11/04/2003 |
| 6601928 | Industrial component holder assembly and rack A rack for holding industrial components, such as vehicle components, including class A components, includes a rigid frame and a flexible frame which is positionable in the rigid frame and which is preferably collapsible. The flexible frame is adapted to ... | 08/05/2003 |
| 6394290 | Display stand A foldable, point-of-purchase display stand is disclosed. The display stand is manufactured from a piece sheet of corrugated board. The display stand has a shelf that is secured by a hook affixed with a pop rivet or eyelet. The disclosed stand is stable f... | 05/28/2002 |
| 6305764 | Industrial component holder assembly and rack A rack for holding industrial components, such as vehicle components, including class A components, includes a rigid frame and a collapsible, self-supporting frame which is positionable in the rigid frame. The collapsible, self-supporting frame is adapted... | 10/23/2001 |
| 5954412 | High load aquarium support cabinet A high load support stand or cabinet for aquariums or other heavy objects, the stand having a pair of side members pivotally joined by hinges to a front member, a back brace member fitting into slots in the side member, a bottom member and a top member ea... | 09/21/1999 |
| 5829501 | Complete workstation A complete workstation (10) comprising a workbench (12) and a worktable (14). A facility (16) is for supporting the worktable (14) upon the workbench (12), so that a person (18) can utilize the workbench (12) and the worktable (14) simultaneously.... | 11/03/1998 |
| 5540158 | Sectional folding table A sectional folding table has a first-tabletop frame (3) with an outside periphery into which a second-tabletop frame (4) and foldable legs (16, 18) of the second-tabletop frame are pivotally foldable. An attachment side (20) of the first-tabletop frame i... | 07/30/1996 |
| 5526944 | Balanced inventory/facing construction An inventory/facing construction currently available gondola which allows it to accommodate faster moving inventory without changing the desired planogrammed facings. A horizonal shelf carries symmetrical anchors at each rear end. A three-way arm has one ... | 06/18/1996 |
| 5465851 | Suspension-type display stand An erectable stand for displaying objects includes a generally planar back panel and at least one mounting flap that is hinged to the back panel. At least one separate peg is mounted on the mounting flap such that its suspending portion projects past an e... | 11/14/1995 |
| 5370064 | Travel table A folding table is disclosed for use as an auxiliary table for a child or an adult. It is comprised of three modules, each assembled from a blank of cardboard and easily placed in a flat state for storage or disposal. Each of the leg modules (11, 12) is c... | 12/06/1994 |
| 5273169 | Corrugated display stand A single corrugated paper board layer with horizontal corrugations is formed into a rear and two doubled over side walls which fold overlapping the rear wall reinforced with a single corrugated corrugated paper board layer. The side walls have doubled ove... | 12/28/1993 |
| 5159883 | Tripod table A tripod table having a generally equilateral triangular table top to which are attached three table top support legs, each to a different side of the table top. Each table top support leg is constructed of three triangular sections. These triangular sect... | 11/03/1992 |
| 5085447 | Folding furniture structure The folding furniture structure, which is capable of having a folded configuration and an unfolded configuration, comprises a tray (2, 3) supported by a pair of opposite underframes (14) each having an upper end and a lower end, the tray being divided int... | 02/04/1992 |
| 5018785 | Folding table A table and attached bench support structure is foldable between an open erected position and a closed storable position. The table support mechanism comprises pivotally interconnected top brace, leg brace, bench leg, bench support member and table leg co... | 05/28/1991 |
| 4997151 | Foldable support for a table A foldable support for a table includes three or more pairs of leg members coupled together by three or more frame plates. One end of each pair of leg members is coupled by a bending member. A sleeve which is fixed to each end of the frame plates is provi... | 03/05/1991 |
| 4942830 | Paper-product shelving construction A paper-product shelving construction composed of a single-piece paper-product shroud and a shelving assembly, fitted within the shroud, and formed from paper-product components. The shelving assembly includes a plurality of fluted shelf members extending... | 07/24/1990 |
| 4854246 | Display device and method of assembly The inventive display device has a continuous wall structure with first and second, substantially flat, facing wall pairs and a flat shelf portion cut directly out of each of the walls of the wall pairs. The shelf portions are foldable relative to their r... | 08/08/1989 |
| 4664040 | Desk organizer A sheet metal folding shelf construction particularly suited for desk top use which may be transported in partially assembled folded condition to be subsequently erected by a user with a minimum of manipulation. A back panel is hingedly interconnected at ... | 05/12/1987 |
| 4648517 | Shelf support structure A shelf support structure with upright posts of sheet metal sections and horizontal braces of sheet metal sections, connecting these with each other, provides with a simple structure an inherently stable connection between the posts and the horizontal bra... | 03/10/1987 |
| 4528915 | Portable shelving Portable shelving, which is readily assembled and disassembled, includes a foldable backing having a plurality of standards mounted thereto and having means to permit it to be attached to a surface of a structure. The standards include means for receiving... | 07/16/1985 |
| 4437413 | Folding structure employing a Sarrus linkage A Sarrus linkage is a type of folding linkage or structure in which two opposed links are connected by two sets of connecting links, each of which sets includes two separate links. The links of such a linkage are hinged together in such a manner that the ... | 03/20/1984 |
| 4262606 | Convertible folding tables A convertible, foldable stand and portable tray combination is designed to yield a maximum of utility. The stand is built of identical frames assembled in link relationship, the legs having slip-grip feet which are restrained in lateral spread by flexible... | 04/21/1981 |
| 4236460 | Foldable furniture system A multifunctional folding furniture system includes a basic frame structure to which functional panels are removably attached. The frame consists of four stiles (uprights) connected by side rails to form side members, which members are removably and rotat... | 12/02/1980 |
| 4170182 | Folding table structure A folding work table, or the like, having two rectangular platforms joined by four foldable legs with a pair of lateral support members on each side for releasably locking the legs in an erected position. Each leg is hingedly connected at its opposite end... | 10/09/1979 |
| 4164287 | Display stand and arrangement thereof A display stand for monogrammed articles which are arranged in a particular alphabetic pattern. The display stand has a plurality of shelves and upstanding standards. Floor supports interfit with the standards and the standards have slots which interfit w... | 08/14/1979 |
| 4153311 | Sectional unit furniture assembly There is described a sectional unit furniture assembly which employs at least one connecting board for interconnecting at least two juxtaposed sectional units or columns of stacked sectional units, the connecting board having at opposite ends shelf portio... | 05/08/1979 |
| 4122782 | Folding shelving Folding shelving in a single unit comprising a series of rigid shelves connected at the edges thereof to a flexible side wall extending over and under the same at the top and bottom, wherein the shelving is supported by a single member attached to a wall ... | 10/31/1978 |