Karl Vollenweider

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Wagenhausen, CH

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Patents Grantslast 30 patents

Information Patent Grant
Device for joining two structural parts
- Patent number 4,098,555
- Issue date Jul 4, 1978
- Swiss Aluminium Ltd.
- Karl Vollenweider
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Device for connecting hollow sections
- Patent number 4,025,209
- Issue date May 24, 1977
- Swiss Aluminium Ltd.
- Karl Vollenweider
- E04 - BUILDING