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Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 7299846 | Tool for removing material strip from surface A tool is used to remove a material strip from a surface. The tool has a collapsible body configurable in expanded and collapsed configurations. The expanded configuration allows the strip to be wound about the body while the strip is being removed from a surface. W... | 11/27/2007 |
| 6923599 | In-ground lifting system and method An in-ground lifting system and method are provided that is operable for raising a structure and its foundation at least several feet. In one presently preferred embodiment, the method is utilized to raise the structure above any anticipated flood levels to thereby ... | 08/02/2005 |
| 6863475 | Apparatus for injecting fluids An apparatus and a process for injecting fluids while prevents backflow are provided. The apparatus comprises a) a hollow core pipe with an open end and a closed end, and containing exit ports in the peripheral wall that are closed when there is no, or low fluid pre... | 03/08/2005 |
| 4826357 | Device for the internal occlusion of tubular foundation piles The device for the occlusion of the internal clearance of tubular foundation piles according to the invention comprises a plug, consisting of a shutter and a deforming ring cooperating with a deformation fixture capable to impart to the plug the opening p... | 05/02/1989 |
| 4430024 | Hydraulically operated mandrels Expandable tubular mandrels have lengthwise sections the upper ends of which are joined by a head. Hydraulically operated piston-cylinder units within the mandrel are spaced apart lengthwise of the sections and connected to the mandrel in a manner such th... | 02/07/1984 |
| 4426175 | Method of and apparatus for reinforcing piling structure and improved precast concrete pile suitable for use in said method A precast concrete pile is provided which has spaced apart concavities disposed in its inner or outer peripheral wall surface. The spaced apart concavities partially extend into the wall surface and terminate with frangible end portions. These end portion... | 01/17/1984 |
| 3984992 | Pile driving mandrel An expansible pile driving mandrel made up of two arcuate segments, each having a chordal stiffening web and a hydraulic cylinder carried by the web of one segment and passing the web of the other.... | 10/12/1976 |
