hand hammers

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Patents Grantslast 30 patents

Information Patent Grant
Hammer and method for manufacture the same
- Patent number 5,142,948
- Issue date Sep 1, 1992
- Mou T. Liou
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
2884816
- Patent number 2,884,816
- Issue date May 5, 1959
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
2571350
- Patent number 2,571,350
- Issue date Oct 16, 1951
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
1838470
- Patent number 1,838,470
- Issue date Dec 29, 1931
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
1669701
- Patent number 1,669,701
- Issue date May 15, 1928
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
1550962
- Patent number 1,550,962
- Issue date Aug 25, 1925
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
1548603
- Patent number 1,548,603
- Issue date Aug 4, 1925
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...