Edward G. Grohoski

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Litchfield, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Re-rolling attachment for thread rolling machine
- Patent number 4,252,009
- Issue date Feb 24, 1981
- Hartford Special, Inc.
- Edward G. Grohoski
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Die mounting assembly for a planetary work forming machine
- Patent number 4,118,965
- Issue date Oct 10, 1978
- The Hartford Special Machinery Company
- Edward Gregory Grohoski
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Planetary work forming machine having improved starter timing contr...
- Patent number 4,088,045
- Issue date May 9, 1978
- The Hartford Special Machinery Company
- Edward G. Grohoski
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...