1
Avery Roger E, Wepsic James G: Electrode implant for the neuro-stimulation of the spinal cord. Avery Laboratories, April 3, 1973: US3724467 (241 worldwide citation)

An improved implantable device for electrically stimulating a selected portion of the spinal cord is provided. A relatively thin and flexible strip of physiologically inert plastic is provided with a plurality of electrodes. Lead wires that are also encapsulated in the same physiologically inert pla ...


2
Malmer Jr Michael M, Perkins Cornelius C, Waldenmayer Donald W, Chowning Patrick J, Gardner Leonard R: Small reconfigurable processor for a variety of data processing applications. Burroughs Corporation, April 3, 1973: US3725868 (161 worldwide citation)

An improved microinstruction data processor capable of operating as an independent processor or as a terminal unit for a large general purpose computer employing a read/write disk memory to hold both macroinstructions and microinstructions, wherein the microinstructions implement macroinstructions. ...


3
Schreiber Olaf: Radar system for determining the angular deviation of a target from a reference line. Telefunken Patentverwertungsgesellschaft mbH, April 3, 1973: US3725937 (146 worldwide citation)

A radar system for determining the angular deviation of a target from a reference line. In an exemplary embodiment, an antenna arrangement is switched between at least two states which result in at least two respective radiation patterns having axes of symmetry at an angle to the optical axis of the ...


4
McCleerey Earl W: Portable hair dryer. Westinghouse Electric Corporation, April 3, 1973: US3724092 (99 worldwide citation)

A portable hair dryer having a base generally comprising a molded casing housing a motor and centrifugal fan assembly, a heater element, air inlet openings for receiving ambient room air and delivering it to a duct connected to an air chamber having a plurality of outlet openings and contoured to re ...


5
Langan Marion J: Capacitance compensation circuit for differential amplifier. April 3, 1973: US3725804 (97 worldwide citation)

A differential amplifier is often used as a signal conditioner for low level transducer pick-ups. In many such applications the differential amplifier is remotely located with respect to the transducer. If there is amplifier input capacitance, or capacitance from either transmission line to any pote ...


6
Reuter Ernst Gottfried: Method and circuit arrangement for displaying or recording a sequence of binary bits. Licentia Patent Verwaltungs, April 3, 1973: US3725672 (93 worldwide citation)

A method and circuit for producing a representation of a sequence of binary bits, or a binary word, in the form of a series of changes in the state, or value of a signal, by causing the interval between two successive state changes to have one length when successive binary bits have the same value a ...


7
Bosland James M: Shredder. Ketcham & McDougall, April 3, 1973: US3724766 (86 worldwide citation)

A paper shredder comprises a housing containing rotatable shredder blades, a driving motor and suitable reduction gears. A cover member containing a paper chute is hingedly supported on the housing. The cover member includes a retaining portion at one end which is adapted to fit on the top of a wast ...


8
Schwartz Hermann: Bank note testing apparatus. Siegfried Peyer, April 3, 1973: US3725667 (85 worldwide citation)

A process and an apparatus for testing bank notes for their genuineness, particularly for automatic vending machines, wherein the bank note is illuminated from one side from a light source through a mask. The printed image on one side of the bank note is divided by the mask into several test fields. ...


9
Hopkins John B, Rindner Wilhelm: Memory material actuator devices. April 3, 1973: US3725835 (82 worldwide citation)

Disclosed are actuator devices employing 'memory material' actuator and reset elements that deform from a set shape toward an original shape when subjected to a critical temperature level after having been initially deformed from the original shape into the set shape while at a lower temperature. Th ...


10
Woycechowsky Brian J: Method of perspective transformation in scanned raster visual display. The Singer Company, April 3, 1973: US3725563 (81 worldwide citation)

A general method of providing perspective transformations in a visual display system having an image generated by a scanned raster device such as a CRT or television projector is shown. The television display is a window out of which an observer views a simulated picture of terrain. The line of sigh ...