Darrell G. Stack

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St. Louis, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Plunge cutting device and method for pipes
- Patent number 5,314,270
- Issue date May 24, 1994
- Wayne N. Lavancy
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Plunge cutting device and method for plastic pipe members such as p...
- Patent number 5,304,018
- Issue date Apr 19, 1994
- Wayne N. LaVanchy
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR