Duane W. Woltjen

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Manchester, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Means for attaching a replaceable stone and/or guide assembly to a...
- Patent number 4,555,875
- Issue date Dec 3, 1985
- Sunnen Products Company
- Robert M. Sunnen
- B24 - GRINDING POLISHING
Information Patent Grant
Guides for honing heads
- Patent number 4,486,983
- Issue date Dec 11, 1984
- Sunnen Products Company
- Robert M. Sunnen
- B24 - GRINDING POLISHING
Information Patent Grant
Torque limiting overload coupling
- Patent number 4,174,621
- Issue date Nov 20, 1979
- UMC Industries, Inc.
- Duane W. Woltjen
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Multi-motion parts handler
- Patent number 4,036,374
- Issue date Jul 19, 1977
- AMC Industries, Inc.
- Duane W. Woltjen
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS