For the Inventor, By the Inventor

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Chicago, IL, United States of America

Bally Manufacturing Company

USPTO Granted Patents = 3

Trademarks = 1

Forward Citations = 242

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4 inventors (with patents filed for the assignee):

Martin A Keane (1 out of 7 patents)

Donald E Hooker (1 out of 15 patents)

Charles H Black (1 out of 2 patents)

4. Anthony P Dvorzsak (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 4760247 - Optical card reader utilizing area image processing (1988-07-26),

2. 4736109 - Coded document and document reading system (1988-04-05),

3. 4168833 - Limited rebound mechanism (1979-09-25),

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USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#772 in Chicago, IL

#3,363 in Illinois

#72,025 in US

Chicago, IL, United States of America

Bally Manufacturing Company

Forward Citations = 242

4 inventors:

Martin A Keane (1 out of 7 patents)

Donald E Hooker (1 out of 15 patents)

Charles H Black (1 out of 2 patents)

4. Anthony P Dvorzsak (1 out of 1 patent)

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