James R. Mayer

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Denver, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulic percussion tool with impact blow and frequency control
- Patent number 4,062,411
- Issue date Dec 13, 1977
- Gardner-Denver Company
- Richard Wayne Adkins
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Hydraulic rock drill system
- Patent number 3,995,700
- Issue date Dec 7, 1976
- Gardner-Denver Company
- James R. Mayer
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS