Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 6830091 | Louver and louver curtain constructed therefrom A louver for a louver blind curtain comprising two parts which can be moved in a telescope-like manner with respect to each other. By means of a rubber traction device, the louver parts are subjected to pre-tension in the direction toward the shortened position of t... | 12/14/2004 |
| 6443208 | Window securing apparatus In combination, a window frame and a series of bars carried by the frame for bodily movement toward and away from a side of the frame, said bars having ends, and locking members to lock opposite ends of the bars in window protecting positions thereof, and... | 09/03/2002 |
| 5301733 | Tape-supported window cover system A cover system suitable for windows includes a tape support for maintaining the orientation of the cover and for opening and closing the cover.... | 04/12/1994 |
| 4381811 | Support carrier for the drive shaft of a vertical venetian blind A support carrier for the drive shaft of a vertical venetian blind is disclosed for supporting the drive shaft intermediate its ends, particularly when the blind is open. The support carrier moves along the drive shaft to a predetermined stop point so tha... | 05/03/1983 |
| 4381029 | Traverse rod for a vertical blind The traverse rod assembly includes an elongated hollow traverse rod having a pair of parallel channels each of which has a lengthwise slot therein, one of said slots opening downwardly. Plural hangers are slidably supported in one of the channels and they... | 04/26/1983 |
| 4350197 | Shutter blind assembly A shutter blind is disclosed which is comprised of a supporting rail, a plurality of carriages slidably mounted on the supporting rail and a plurality of shutters, each shutter mounted on a respective carriage. A rotating mechanism is provided for rotatin... | 09/21/1982 |
| 4193438 | Vertical-blind-like modular assembly A vertical-blind-like modular assembly, in which each of the blinds may be individually replaced in situ without disassembling the entire assembly, and in which the plurality of blinds making up the assembly will maintain their substantially parallel alig... | 03/18/1980 |
| 4103727 | Slatted blinds A slatted blind comprises vertically disposed slats each mounted at a top end thereof on pivot means carried for rotation about a vertical axis by a respective guide carriage movable along a support rail. At least one of the guide carriages carries a nut ... | 08/01/1978 |
| 4047554 | Drive mechanism and application to a blind with vertical slats A drive mechanism, for example of a blind with vertical slats, comprises first and second rotatable driving elements kinematically connected to a common rotary actuating element respectively by a first coupling arranged to immediately couple the first dri... | 09/13/1977 |