Dieter Collet

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Hemsbach, DE

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Patents Grantslast 30 patents

Information Patent Grant
Foldable ladder
- Patent number 4,842,099
- Issue date Jun 27, 1989
- Emil Freiwald
- Dieter Collet
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS