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Hugh A. Seymour-Chalk

Overall (All Time): #3,822,074 of 4,157,543Top 95%

1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5203858	Alternating velocity rotary engine employing a gear control mechanism	—	1993-04-20