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For the Inventor, By the Inventor

Fortuna, CA, United States of America

C. Crane


USPTO Granted Patents = 3

Trademarks = 4

Forward Citations = 9

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1 inventor (with patents filed for the assignee):

goldMedal Robert C Crane (3 out of 12 patents)


3 patents:

1. D960860 - Radio knob (2022-08-16),
2. D878324 - In-line amplifier (2020-03-17),
3. D874441 - Softspeaker cover (2020-02-04),
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USPTO Data Jan 1 1976 - Jan 13 2026

3 Patents

#1 in Fortuna, CA

#16,448 in California

#72,125 in US

...
Fortuna, CA, United States of America

C. Crane

Forward Citations = 9

1 inventor:

goldMedal Robert C Crane (3 out of 12 patents)

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