For the Inventor, By the Inventor

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Calgary, Canada

550058 Alberta Limited

USPTO Granted Patents = 1

Forward Citations = 6

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1 inventor (with patents filed for the assignee):

Robert De Chazal (1 out of 2 patents)

1 patent: Sort by Forward Citations

1. 5873762 - Playing structure and modules therefor (1999-02-23),

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USPTO Data Jan 1 1976 - Sep 22 2026

1 Patents

#606 in Calgary

#9,426 in Canada

Calgary, Canada

550058 Alberta Limited

Forward Citations = 6

1 inventor:

Robert De Chazal (1 out of 2 patents)

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