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CPC
G08B9/08
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Parent Industries
G
PHYSICS
G08
Signaling
G08B
SIGNALLING OR CALLING SYSTEMS ORDER TELEGRAPHS ALARM SYSTEMS
G08B9/00
Order telegraph apparatus, i.e. means for transmitting one of a finite number of different orders at the discretion of the user
Current Industry
G08B9/08
mechanical
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Patents Grants
last 30 patents
Information
Patent Grant
3690787
Patent number
3,690,787
Issue date
Sep 12, 1972
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information
Patent Grant
2418170
Patent number
2,418,170
Issue date
Apr 1, 1947
G08 - SIGNALLING
Information
Patent Grant
1345384
Patent number
1,345,384
Issue date
Jul 6, 1920
G08 - SIGNALLING