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Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 7312559 | Stator and ceramic tube type ultrasonic motor using the same The present invention relates to a ceramic tube type ultrasonic motor having a stator including a tube-type elastic body that is formed of a ceramic material; and a plurality of piezoelectric diaphragms that are attached on the outer peripheral surface of the elasti... | 12/25/2007 |
| 6818193 | Segmented electrode capillary discharge, non-thermal plasma apparatus and process for promoting chemical reactions A plasma reactor including a first dielectric having at least one capillary defined therethrough, and a segmented electrode including a plurality of electrode segments, each electrode segment is disposed proximate an associated capillary. Each electrode segment may ... | 11/16/2004 |
| 6635981 | Color cathode ray tube with mask frame having beads for rigidity A mask frame comprises a sidewall portion in the form of a rectangular frame including a pair of long sidewalls opposed to each other, a pair of short sidewalls opposed to each other, and corner sidewalls between the long and short sidewalls, and a base p... | 10/21/2003 |
| 6404118 | Deflection yoke with a coil separator firmly engaged to the printed circuit board for preventing fluctuation A deflection yoke for preventing fluctuation of the deflection yoke by maintaining a firmly engaged state while preventing fracture and damage thereof caused by an assembling shock generated when assembling a printed circuit board and a rear cover. The pr... | 06/11/2002 |
| 6246166 | Electrode of electron gun for cathode ray tube An electrode of an electron gun for a cathode ray tube with an improved structure so as to enhance the flatness of the electrode. The electrode includes an electron beam passing plane on which one or more electron beam passing holes are formed, an upper s... | 06/12/2001 |
| 4623882 | Fluorescent display arrangement having field electrode adjacent cathode A display arrangement utilizes a fluorescent screen 3 to provide readily alterable bright displays. The arrangement can provide a fairly large display surface, but can be of very small thickness. It contains electron emissive cathodes 5, and field electro... | 11/18/1986 |
| 4616160 | Multiple beam high definition page display A high definition page display system for graphics and text utilizing multiple beams in a CRT is disclosed. Information for the several lines which are written simultaneously is made available in parallel. The invention is described in terms of a characte... | 10/07/1986 |
| 4603279 | Cathode ray tube (CRT) having shaped beams A high definition page display system for graphics and text utilizing shaped beams in a CRT is disclosed. Information for the several lines which are written simultaneously is made available in parallel. The invention is described in terms of a character ... | 07/29/1986 |
| 4340838 | Control plate for a gas discharge display device A control plate for a gas discharge display device has a mechanically stable carrier plate of an electrically insulating material which has metallized column conductor tracks on one side and metallized row conductor tracks on an opposite side which in com... | 07/20/1982 |
| 4306178 | Display arrangements A display arrangement consists of a cathode ray tube in which electrons from a flood gun pass through a segmented mesh electrode, different portions of which can be selectively switched to enable the electrons to reach only selected portions of a fluoresc... | 12/15/1981 |
| 4107582 | Character selector for a shaped beam cathode ray tube A character selector for a shaped beam cathode ray tube comprising an orthogonal pair of air core deflection coils each of which consists of two identical halves formed to fit snugly over the neck of the cathode ray tube. The coils are continuous windings... | 08/15/1978 |
| 3940652 | Junction target monoscope A signal display system having a visual display and a display signal generator in which a semiconductor junction target has a high conductivity P layer, a low conductivity N layer, and a surface layer of insulating material having holes in the shape of le... | 02/24/1976 |
