Emerl R. Carpenter

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Edina, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulic backhoe circuitry
- Patent number 3,960,284
- Issue date Jun 1, 1976
- American Hoist & Derrick Company
- Emerl R. Carpenter
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING