David M. Hansen

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Dublin, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Press having a leveraged linkage assembly mechanism
- Patent number 4,555,928
- Issue date Dec 3, 1985
- Penn Engineering & Manufacturing Corp.
- David M. Hansen
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Press having a linkage mechanism connectable and disconnectable fro...
- Patent number 4,393,684
- Issue date Jul 19, 1983
- Penn Engineering & Manufacturing Corp.
- David M. Hansen
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...