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B21D53/56

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BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING METAL B21D53/00Making other particular articles

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Patents Grantslast 30 patents

Information Patent Grant
Space forming and stop fixing apparatus for fastener chains
- Patent number 4,479,290
- Issue date Oct 30, 1984
- Yoshida Kogyo K. K.
- Tatsuo Osaki
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...