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Rubens A. Sigelmann
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Seattle, WA, US
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Patents Grants
last 30 patents
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Patent Grant
One-movement balanced hands clock
Patent number
7,643,381
Issue date
Jan 5, 2010
Rubens A. Sigelmann
G04 - HOROLOGY
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Patent Grant
Ultrasonic coagulation timer
Patent number
4,014,650
Issue date
Mar 29, 1977
Research Corporation
Rubens A. Sigelmann
G01 - MEASURING TESTING
Patents Applications
last 30 patents
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Patent Application
ONE-MOVEMENT BALANCED HANDS CLOCK
Publication number
20090185457
Publication date
Jul 23, 2009
Rubens A. Sigelmann
G04 - HOROLOGY