Berntsen, Inc.

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Madison, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Anti-twist rod section and method of using the same in survey monum...
- Patent number 4,625,473
- Issue date Dec 2, 1986
- Berntsen, Inc.
- Phillip R. Peterson
- G01 - MEASURING TESTING
Information Patent Grant
Driven-type sectionalized survey monument resistant to removal
- Patent number 4,502,258
- Issue date Mar 5, 1985
- Berntsen, Inc.
- William C. Rushing
- G01 - MEASURING TESTING

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