Anne Lourens Sijtstra

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Rotterdam, NL

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Patents Grantslast 30 patents

Information Patent Grant
Gear transmission of a cylindrical pinion with a face gear, face ge...
- Patent number 5,845,533
- Issue date Dec 8, 1998
- Crown Gear B.V.
- Augustinus F.H. Basstein
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of producing a crown wheel
- Patent number 5,791,840
- Issue date Aug 11, 1998
- Crown Gear B.V.
- Anne Lourens Sijtstra
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Tool for producing a crown wheel which can mesh with a pinion with...
- Patent number 5,720,584
- Issue date Feb 24, 1998
- Crown Gear B.V.
- Anne Lourens Sijtstra
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Tool for manufacturing crown wheels
- Patent number 5,622,459
- Issue date Apr 22, 1997
- Crown Gear B.V.
- Augustinus F. H. Basstein
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR