Title:
Parturitive phone
Document Type and Number:
United States Patent 3348535


Inventors:
Paul, Gregg David
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Sponsored by:
Flash of Genius
Publication Date:
10/24/1967
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Assignee:
Paul, Gregg David
Primary Class:
600/528
Other Classes:
381/67
International Classes:
A61B5/024; A61B7/04; A61B7/00
US Patent References:
2409749Indicating system
2658505Arterial pulse wave velocity meter
2669986Apparatus for electronically locating nerve irritations
2827040Automatic sphygmomanometer
3052756
3171892Electronic apparatus for the observation of signals of biological origin


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