Walter Graf

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Greifensee, CH

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Patents Grantslast 30 patents

Information Patent Grant
Electronic device for monitoring a plurality of running threads on...
- Patent number 4,267,554
- Issue date May 12, 1981
- Gebrueder Loepfe AG
- Erich Loepfe
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Electronic thread travel monitoring device
- Patent number 4,215,728
- Issue date Aug 5, 1980
- Gebruder Loepfe AG
- Erich Weidman
- D03 - WEAVING