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Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 4775120 | Extraterrestrial transportation apparatus and method Greatly reduced cost of extraterrestrial transporation of strong items and materials is obtained through the use of impact into a crash-capturing-containing facility for deceleration. Cargoes from both the Earth and Moon can be cheaply crash-transported t... | 10/04/1988 |
| 4724738 | Space entry actuator launch system A launching system is provided having a launch cylinder with an open bottom and propulsion means in the form of a rocket motor attached within the cylinder adjacent the top thereof. The cylinder is formed of a lightweight material which floats with a subs... | 02/16/1988 |
