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  • B21D53/82
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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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B21D53/82perforated music sheets pattern sheets
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Patents Grantslast 30 patents

  • Information Patent Grant

    3071317
    • Patent number 3,071,317
    • Issue date Jan 1, 1963
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2964239
    • Patent number 2,964,239
    • Issue date Dec 13, 1960
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2838834
    • Patent number 2,838,834
    • Issue date Jun 17, 1958
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2335981
    • Patent number 2,335,981
    • Issue date Dec 7, 1943
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2317425
    • Patent number 2,317,425
    • Issue date Apr 27, 1943
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1662948
    • Patent number 1,662,948
    • Issue date Mar 20, 1928
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1662949
    • Patent number 1,662,949
    • Issue date Mar 20, 1928
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1586257
    • Patent number 1,586,257
    • Issue date May 25, 1926
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1432424
    • Patent number 1,432,424
    • Issue date Oct 17, 1922
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1427336
    • Patent number 1,427,336
    • Issue date Aug 29, 1922
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1411307
    • Patent number 1,411,307
    • Issue date Apr 4, 1922
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1411306
    • Patent number 1,411,306
    • Issue date Apr 4, 1922
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1401201
    • Patent number 1,401,201
    • Issue date Dec 27, 1921
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1400242
    • Patent number 1,400,242
    • Issue date Dec 13, 1921
    • D05 - SEWING EMBROIDERING TUFTING
  • Information Patent Grant

    1366017
    • Patent number 1,366,017
    • Issue date Jan 18, 1921
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1351432
    • Patent number 1,351,432
    • Issue date Aug 31, 1920
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1323614
    • Patent number 1,323,614
    • Issue date Dec 2, 1919
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1303863
    • Patent number 1,303,863
    • Issue date May 20, 1919
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1256722
    • Patent number 1,256,722
    • Issue date Feb 19, 1918
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1195477
    • Patent number 1,195,477
    • Issue date Aug 22, 1916
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1173874
    • Patent number 1,173,874
    • Issue date Feb 29, 1916
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1162267
    • Patent number 1,162,267
    • Issue date Nov 30, 1915
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1083541
    • Patent number 1,083,541
    • Issue date Jan 6, 1914
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1061051
    • Patent number 1,061,051
    • Issue date May 6, 1913
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1032707
    • Patent number 1,032,707
    • Issue date Jul 16, 1912
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1021049
    • Patent number 1,021,049
    • Issue date Mar 26, 1912
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1016862
    • Patent number 1,016,862
    • Issue date Feb 6, 1912
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1016313
    • Patent number 1,016,313
    • Issue date Feb 6, 1912
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    944790
    • Patent number 944,790
    • Issue date Dec 28, 1909
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    935737
    • Patent number 935,737
    • Issue date Oct 5, 1909
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents