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Douglas J. Greenwold
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Rockville, MD, US
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last 30 patents
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Patent Grant
Device for measuring multiple channels of heartbeat activity and en...
Patent number
4,889,134
Issue date
Dec 26, 1989
Survival Technology, Inc.
Douglas J. Greenwold
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Patent Grant
Monitoring device with dual position electrodes
Patent number
4,862,896
Issue date
Sep 5, 1989
Survival Technology, Inc.
Herbert E. Reinhold
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE