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For the Inventor, By the Inventor

East Rochester, NY, United States of America

D. O. Industries, Inc.


USPTO Granted Patents = 1

Trademarks = 1

Forward Citations = 6

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1 inventor (with patents filed for the assignee):

goldMedal Marvin I Mindell (1 out of 4 patents)


1 patent:

1. 4707092 - Transparency transport system for overhead projector (1987-11-17),
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USPTO Data Jan 1 1976 - Dec 16 2025

1 Patents

#9 in East Rochester, NY

#8,405 in New York

#133,964 in US

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East Rochester, NY, United States of America

D. O. Industries, Inc.

Forward Citations = 6

1 inventor:

goldMedal Marvin I Mindell (1 out of 4 patents)

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