Hans-Theodor Grisebach

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Patents Grantslast 30 patents

Information Patent Grant
Control systems and arrangements for use in mineral mining installa...
- Patent number 4,046,058
- Issue date Sep 6, 1977
- Gewerkschaft Eisenhutte Westfalia
- Hans Theodor Grisebach
- E21 - EARTH DRILLING MINING
Information Patent Grant
Control systems and arrangements for use in mineral mining installa...
- Patent number 3,965,797
- Issue date Jun 29, 1976
- Gewerkschaft Eisenhutte Westfalia
- Hans Theodor Grisebach
- E21 - EARTH DRILLING MINING
Information Patent Grant
Damping device for hinges and the like
- Patent number 3,952,365
- Issue date Apr 27, 1976
- Hans-Theodor Grisebach
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING