Charles H. Sparks

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Eugene, OR, US

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Patents Grantslast 30 patents

Information Patent Grant
Fluid-mechanical drive for press brake
- Patent number 4,045,995
- Issue date Sep 6, 1977
- Steel Structures, Inc.
- Charles H. Sparks
- B30 - PRESSES
Information Patent Grant
Loader and unloader for plate roll machine
- Patent number 3,996,778
- Issue date Dec 14, 1976
- Steel Structures, Inc.
- Charles H. Sparks
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...