Duane W. Wallace

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Drill bit and method of manufacture
- Patent number 4,417,629
- Issue date Nov 29, 1983
- Reed Rock Bit Company
- Duane W. Wallace
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Hard surfacing for oil well tools
- Patent number 4,277,108
- Issue date Jul 7, 1981
- Reed Tool Company
- Duane W. Wallace
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Hard surfaced well tool and method of making same
- Patent number 4,043,611
- Issue date Aug 23, 1977
- Reed Tool Company
- Duane W. Wallace
- B22 - CASTING POWDER METALLURGY