John E. Pertle

Follow

Person

Garden Valley, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Angularly adjustable mandrel assembly
- Patent number 4,614,136
- Issue date Sep 30, 1986
- Tri-Tool
- John E. Pertle
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Cutting tool bit holder
- Patent number 4,422,356
- Issue date Dec 27, 1983
- Tri Tool Inc.
- John E. Pertle
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Tube facing machine
- Patent number 4,319,503
- Issue date Mar 16, 1982
- Tri Tool Inc.
- Thomas W. Saine
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Elbow mandrel
- Patent number 4,246,814
- Issue date Jan 27, 1981
- Tri Tool, Inc.
- John E. Pertle
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Cam follower tool arrangement
- Patent number 4,207,786
- Issue date Jun 17, 1980
- Tri Tool, Inc.
- William H. Astle
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR