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Golden Gate Switchboard Co.
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Napa, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Vacuum circuit breaker
Patent number
4,587,390
Issue date
May 6, 1986
Golden Gate Switchboard Co.
Keith I. Gray
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73504506 - TRI-VAC
Serial number
73504506
Registration number
1355093
Filing date
Oct 18, 1984
Golden Gate Switchboard Co.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments