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WIN-TROL, INC.
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HELENA, MT, US
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Patents Grants
last 30 patents
Information
Patent Grant
Window operating apparatus
Patent number
4,653,228
Issue date
Mar 31, 1987
Win-Trol, Inc.
Ralph G. Yuhas
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Patents Applications
last 30 patents
Trademark
last 30 trademarks
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Trademark
73591988 - WIN-TROL
Serial number
73591988
Registration number
1421774
Filing date
Apr 7, 1986
WIN-TROL, INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments