Marcel Champeau — 2 Patents | Patent Leaderboard

Marcel Champeau has been granted 2 US patents. The first was granted in 1981 and the most recent in May 1984. Marcel Champeau ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Marcel Champeau in Niort, FR.

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Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4445405	Lathes with central headstock	Andre Tabutin	1984-05-01
4296658	Clamping device for simultaneously machining internally and/or externally, the two ends of a workpiece	Andre Tabutin	1981-10-27

Marcel Champeau — 2 Patents

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