Roland Keller

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Wittenbach, CH

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Patents Grantslast 30 patents

Information Patent Grant
Installation for the transport of helical-shaped wound springs
- Patent number 6,269,936
- Issue date Aug 7, 2001
- Spuhl AG St. Gallen
- Josef Schnutt
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
COIL SPRING PRODUCT WITH ROTARY CUTTER
- Publication number 20240367215
- Publication date Nov 7, 2024
- SPÜHL GMBH
- Roland KELLER
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Coil Spring Winding Apparatus and Method of Winding A Coil Spring
- Publication number 20190039118
- Publication date Feb 7, 2019
- SPÜHL GMBH
- Roland KELLER
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...