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Franz Krautkremer
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Spay, DE
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last 30 patents
Information
Patent Grant
Drive mechanism particularly for flat-bottomed watercrafts
Patent number
4,838,821
Issue date
Jun 13, 1989
Schottel-Werft. Josef Becker GmbH & Co. KG
Franz Krautkremer
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information
Patent Grant
Device for controlling the direction of movement and thrust force o...
Patent number
4,519,335
Issue date
May 28, 1985
Schottel-Werft. Josef Becker GmbH & Co. KG
Franz Krautkremer
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information
Patent Grant
Water-jet drive mechanism for driving and controlling of particular...
Patent number
4,419,082
Issue date
Dec 6, 1983
Schottel-Werft Josef Becker GmbH & Co KG
Franz Krautkremer
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information
Patent Grant
Apparatus for controlling a watercraft
Patent number
4,418,633
Issue date
Dec 6, 1983
Schottel-Werft, Josef Becker GmbH & Co KG.
Franz Krautkremer
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information
Patent Grant
Water-jet drive mechanism for driving and controlling of particular...
Patent number
4,417,877
Issue date
Nov 29, 1983
Schottel-Werft. Josef Becker GmbH & Co. KG
Franz Krautkremer
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information
Patent Grant
Drive mechanism for ships or the like comprising a main propeller a...
Patent number
4,412,500
Issue date
Nov 1, 1983
Schottel-Werft, Josef Becker GmbH & Co KG.
Franz Krautkremer
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information
Patent Grant
Water-jet drive mechanism for the driving of watercraft
Patent number
4,411,630
Issue date
Oct 25, 1983
Schottel-Werft, Josef Becker GmbH & Co KG.
Franz Krautkremer
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information
Patent Grant
Hydro-jet propulsion device for driving and controlling of particul...
Patent number
4,278,431
Issue date
Jul 14, 1981
Schottel-Werft. Josef Becker GmbH & Co. KG
Franz Krautkremer
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information
Patent Grant
Drive and control device for watercraft or the like having at least...
Patent number
4,220,111
Issue date
Sep 2, 1980
Schottel-Werft Josef Becker GmbH & Co. KG
Franz Krautkremer
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information
Patent Grant
Tugboat or the like
Patent number
4,175,511
Issue date
Nov 27, 1979
Schottel-Werft Josef Becker GmbH & Co. KG
Franz Krautkremer
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT