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For the Inventor, By the Inventor

Willowbrook, IL, United States of America

Technofast, Inc.


USPTO Granted Patents = 2

Forward Citations = 63

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1 inventor (with patents filed for the assignee):

goldMedal Charles E Gutshall (2 out of 7 patents)


2 patents:

1. 4355552 - Recessed head screw (1982-10-26),
2. 4202244 - Recessed head screw (1980-05-13),
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USPTO Data Jan 1 1976 - Jan 6 2026

2 Patents

#15 in Willowbrook, IL

#4,308 in Illinois

#92,697 in US

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Willowbrook, IL, United States of America

Technofast, Inc.

Forward Citations = 63

1 inventor:

goldMedal Charles E Gutshall (2 out of 7 patents)

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