John D. Hale

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Swisshome, OR, US

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulic control system for a dump truck
- Patent number 4,202,175
- Issue date May 13, 1980
- John D. Hale
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Hydraulic system for braking truck engines
- Patent number 3,939,949
- Issue date Feb 24, 1976
- John D. Hale
- B60 - VEHICLES IN GENERAL