of drawing-pins or pins of drawing-pin type

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Patents Grantslast 30 patents

Information Patent Grant
2728093
- Patent number 2,728,093
- Issue date Dec 27, 1955
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
2103508
- Patent number 2,103,508
- Issue date Dec 28, 1937
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
1885349
- Patent number 1,885,349
- Issue date Nov 1, 1932
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
1731441
- Patent number 1,731,441
- Issue date Oct 15, 1929
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
1650525
- Patent number 1,650,525
- Issue date Nov 22, 1927
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
1576055
- Patent number 1,576,055
- Issue date Mar 9, 1926
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...