1
Herczfeld Bonita Falkner, Herczfeld Peter R, Klafter Richard D: Heart rate and respiratory monitor. Drexel University, December 5, 1972: US3704706 (153 worldwide citation)

Apparatus for detection of pulse repetition rate and oxygenation of blood flow, comprising a solid state probe having a narrow bandwidth light source housed to direct light upon a patient's finger and a photodetector housed for receiving reflected light from such finger, the output of the detector b ...


2
Batz James E: Remote meter reading system. Northern Illinois Gas Company, December 5, 1972: US3705385 (143 worldwide citation)

A system for selectively obtaining information from a plurality of remotely located data registers including a mobile or stationary transmitter for transmitting coded signals representing the identification number of a register to be read and a transponder at each register location for receiving the ...


3
Halloran William X: Orthopedic drill guide apparatus. December 5, 1972: US3704707 (142 worldwide citation)

Orthopedic drill guide apparatus for use in drilling a bore in a fractured bone such as a trochanter for receipt of a pin. The apparatus includes a portable pistol device having aiming means mounted on the top thereof for alignment with an X-ray image-producing target placed over such fractured troc ...


4
De Bell Lawrence R, Price Jr David D: Audio tutoring device including recording capability. Economy Co, December 5, 1972: US3705271 (141 worldwide citation)

Teaching machine apparatus consisting of audio record playback apparatus for reproducing plural channel record tapes including both audio information and control tone signals, and as used in combination with specialized recorder apparatus adapted for answer recording in response to played back instr ...


5
Wahlberg Eric C: Business transaction apparatus. December 5, 1972: US3705384 (132 worldwide citation)

A multiple transaction business machine is provided which includes means for selecting a plurality of transactions, totaling the cost of such transactions and determining the value of payment tendered in satisfaction of the cost of the transactions by payment evaluating means receiving legal tender, ...


6
Winkler Julius G: Method of string-lasting. Compo, December 5, 1972: US3704474 (115 worldwide citation)

The method of shoe making which comprises placing an insole on the bottom of a last, string-lasting an upper onto the last over the exposed face of the insole while holding the inner side of the lasting margin spaced from the edge face of the insole and thereafter forming an outsole against the inso ...


7
Burrous Clifford N, Deboo Gordon J: Temperature compensated light source using a light emitting diode. December 5, 1972: US3705316 (110 worldwide citation)

A temperature compensated light source including a thermistor, several resistors, an operational amplifier and a light emitting diode combined in such a manner that the non-linear characteristics of the thermistor cause the operational amplifier to vary the energizing current supplied to the light e ...


8
Witzig Werner: Convolute tube and method for making same. Sunoco Products Company, December 5, 1972: US3704730 (85 worldwide citation)

An elongate, convolutely wound, adhesively secured tube and method for making same from elongate sheet material and being characterized by eliminating the necessity of having a high moisture content in the adhesive for holding the wound tube together following winding, wherein the method includes ap ...


9
Fanselow Hyman: Punch card viewer. December 5, 1972: US3704938 (83 worldwide citation)

A Punch Card Viewer is provided in the form of a magnifying glass having a flat rear face and a rounded magnifying top face and a vertically extending leading slot adapted to block out all data and holes when the viewer is maintained flush with the bottom edge of the punch card. The viewer can be gu ...


10
Clark William: Fire hose nozzle. B F Products, December 5, 1972: US3704831 (80 worldwide citation)

A fire hose nozzle composed of a hollow handgrip portion and a rotatable nose section providing for the choice of any of a plurality of different sized jet. The handgrip portion has an offset enlarged end with a flat transverse face mounting a threaded stud and having an offset supply port connected ...