Horst Siffrin

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Merchweiler, DE

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Patents Grantslast 30 patents

Information Patent Grant
Material moving apparatus
- Patent number 5,060,405
- Issue date Oct 29, 1991
- Walter Becker GmbH
- Horst Siffrin
- E21 - EARTH DRILLING MINING
Information Patent Grant
Edifice for confinement of equipment in mines and the like
- Patent number 4,670,623
- Issue date Jun 2, 1987
- Walter Becker GmbH
- Horst Siffrin
- E04 - BUILDING