Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 6695408 | Chair kit with laced support A chair and kit for producing a kit. A plurality of legs and cross-members are connectable together to form a chair frame. A leather seat portion and back portion are mounted to the frame and secured together by lacing extending through the opposed ends o... | 02/24/2004 |
| 6666518 | Chair adapted to be stacked A chair adapted to be stacked is provided, of the type having a rear frame (2) including two rear uprights (3) and rear crosspieces (5), a front frame (7) including two front uprights (8) and front crosspieces (9), a seat (10) and lateral crossbars (11) c... | 12/23/2003 |
| 6619749 | Ready-to-assemble articles of furniture A ready-to-assemble (RTA) furniture system includes a collection of identically configured side panels, with sets of the side panels having different aesthetic and/or functional features, a collection of base panels and back panels spanning between pairs ... | 09/16/2003 |
| 6017092 | Structure for connecting a backrest to a seat frame of a chair A structure is provided for connecting a backrest to a seat frame of a chair, the backrest having two rear legs extending therefrom and the seat frame having a rear side, a front side and two sides connected between the rear side and the front side from w... | 01/25/2000 |
| 5988755 | Assembly system for metallic tubular frames for chairs, armchairs and/or benches Assembly system for tubular metallic frames (10) for chairs, armchairs and/or benches, the tubular frames (10) being able to be associated with seats, chair backs, arms, flat surfaces or other parts, padded or not, the frame (10) consisting of a plurality... | 11/23/1999 |
| 4925244 | Chair element which can be personalized Chair element which can be personalized and to which can be fitted various types of seatbacks (20) or seat surface (21) which are and can be differentiated as regards their shape, the element comprising a bearing structure (10) with rear legs (12) that in... | 05/15/1990 |
| 4708308 | Portable stool A stool comprising hub means, seat leg members attached to the hub means and support leg members attached to the hub means. Seat means interconnect the seat leg members.... | 11/24/1987 |
| 4691965 | Joint arrangement for knockdown furniture A joint arrangement for knockdown furniture includes a first spar having two mounting surfaces at lateral sides thereof at a same level; a pair of second spars, each having two end faces, each attached perpendicularly at one end face thereof to one of the... | 09/08/1987 |
| 4580834 | Chair convertible to easy chair A chair, convertible to a recliner, includes a first frame part, a pivot arranged in a middle section of the first frame part, a second frame part having a shape and lines similar to the first frame part, a sliding joint arranged in a middle section of th... | 04/08/1986 |
| 4577906 | Armchair with knocked down front legs An armchair includes a back, a pair of siderests and front legs, which are secured together by fasteners in a position for using, and can be disassembled for being stored, shipped, and so on, or replacing one part thereof with a part equivalent in functio... | 03/25/1986 |
| 4436342 | Furniture joint assembly A joint assembly for connecting a pair of furniture components includes a wedge shaped groove extending inwardly along the surface of one of the furniture components and a matching wedge shaped groove in the surface of the other furniture component. A chi... | 03/13/1984 |
| 4269532 | Coupling for furniture and the like A coupling for joining tubing together in the manufacture of furniture and the like comprising a pair of sleeves mounted one on the other in coplanar relation with their axes at right angle to each other and a wall mounted at the inner end of one of the s... | 05/26/1981 |
| 4234227 | Collapsible chair The invention relates to a two-piece collapsible chair, one of which pieces provides a backrest and rear leg element, and the other of which provides an inverted seven-shaped seat and frontal leg element. Both elements are constructed so that upon erectio... | 11/18/1980 |
| 4183154 | Instructional chair A bolted together disassemblable instructional chair having color coded and number coded or letter coded joint portions and with joining portions provided with respectively different numbers and sizes of bolt openings fitted with corresponding bolts and n... | 01/15/1980 |
| 4146269 | Knockdown furniture structure A furniture support structure includes a pair of front legs and a pair of rear legs each having bore holes therein for receiving rungs that extend therebetween. The pairs of legs are locked together by rungs in the form of dowels which have grooves adjace... | 03/27/1979 |
| 4119286 | Furniture frames A furniture frame including an assembly of tubular components of thermoplastic material in which the connections between the components are constituted by part of one component in the shape of a flattened bend, passed through by a second tubular component... | 10/10/1978 |
| 4079995 | Furniture structure and joint for use therewith A furniture structure utilizes a joint which allows three elongated members to be coupled orthogonally. In a preferred embodiment of the invention, the joint is utilized in a chair in which a first elongated member is a side rail, a second elongated membe... | 03/21/1978 |