Johannes Sandvik

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Patents Grantslast 30 patents

Information Patent Grant
Means for suspending a skid pan from a winch mounted on a tractor
- Patent number 4,645,082
- Issue date Feb 24, 1987
- Elkem a/s
- Johannes Sandvik
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Feed device for guiding a rope onto a winding drum
- Patent number 4,577,810
- Issue date Mar 25, 1986
- Elkem a/s
- Johannes Sandvik
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Feed device for guiding a rope onto a winding drum
- Patent number 4,515,329
- Issue date May 7, 1985
- Elkem a/s
- Johannes Sandvik
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Clutch mechanism for hoisting apparatuses
- Patent number 4,307,870
- Issue date Dec 29, 1981
- Elkem a/s
- Johannes Sandvik
- B66 - HOISTING LIFTING HAULING