LeRoy G. Krupke

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Cottage Grove, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Self-centering telescoping beams
- Patent number 4,257,201
- Issue date Mar 24, 1981
- American Hoist & Derrick Company
- Christoph A. Landolt
- B66 - HOISTING LIFTING HAULING