Jonas L. Roe

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Santa Cruz, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Gimbal mounted on frame with heavy metal plate sides
- Patent number 4,516,338
- Issue date May 14, 1985
- Terradyne Limited
- Jonas L. Roe
- E21 - EARTH DRILLING MINING
Information Patent Grant
Continuous excavating apparatus
- Patent number 4,438,575
- Issue date Mar 27, 1984
- Terradyne Limited
- Jonas L. Roe
- E21 - EARTH DRILLING MINING