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For the Inventor, By the Inventor

Youngstown, OH, United States of America

Commerical Shearing, Inc.


USPTO Granted Patents = 1

Forward Citations = 1

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1 inventor (with patents filed for the assignee):

goldMedal John D Petro (1 out of 9 patents)


1 patent:

1. 4194366 - Two speed valves and bi-directional motor system (1980-03-25),
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USPTO Data Jan 1 1976 - Jan 6 2026

1 Patents

#41 in Youngstown, OH

#5,176 in Ohio

#133,947 in US

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Youngstown, OH, United States of America

Commerical Shearing, Inc.

Forward Citations = 1

1 inventor:

goldMedal John D Petro (1 out of 9 patents)

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