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For the Inventor, By the Inventor

Don Mills, Canada

Gantrex Limited


USPTO Granted Patents = 1

Trademarks = 2

Forward Citations = 12

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1 inventor (with patents filed for the assignee):

goldMedal David Greenhow (1 out of 2 patents)


1 patent:

1. 5135165 - Device for aligning and clamping a rail (1992-08-04),
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USPTO Data Jan 1 1976 - Dec 16 2025

1 Patents

#15 in Don Mills

#9,164 in Canada

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Don Mills, Canada

Gantrex Limited

Forward Citations = 12

1 inventor:

goldMedal David Greenhow (1 out of 2 patents)

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