Ronald W. DuFries

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Westboro, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Mass flow control system for wire drawing machine
- Patent number 4,604,883
- Issue date Aug 12, 1986
- Morgan Construction Company
- William R. Schaetzke
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Spinner drive for double block wire drawing machine
- Patent number 4,511,096
- Issue date Apr 16, 1985
- Morgan Construction Company
- Ronald W. DuFries
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...