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Robert W. Hartwig
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Tacoma, WA, US
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last 30 patents
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Patent Grant
Alignment guide system for transmissive pulse oximetry sensors
Patent number
5,680,857
Issue date
Oct 28, 1997
SpaceLabs Medical, Inc.
Glenn W. Pelikan
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Patent Grant
Automatic internal calibration circuit and method
Patent number
5,239,492
Issue date
Aug 24, 1993
SpaceLabs Medical, Inc.
Robert W. Hartwig
G01 - MEASURING TESTING