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REVOLVING DOOR CONTROL INC., A CORP OF CA
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SAN DIMAS, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Security door with improved sensor for detecting unauthorized passage
Patent number
5,012,455
Issue date
Apr 30, 1991
Revolving Door Control, Inc.
Milan Schwarz
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
75470488 - OAS-2000
Serial number
75470488
Filing date
Apr 20, 1998
REVOLVING DOOR CONTROL, INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73648997 - SENSONIC
Serial number
73648997
Registration number
1462613
Filing date
Mar 12, 1987
REVOLVING DOOR CONTROL, INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73439891 - SAFESEC II
Serial number
73439891
Registration number
1356243
Filing date
Aug 18, 1983
REVOLVING DOOR CONTROL INC.
7 - Machines and machine tools