TREA

against ring damage

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Industry

  • CPC
  • B42F13/0046
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B42Bookbinding B42FSHEETS TEMPORARILY ATTACHED TOGETHER FILING APPLIANCES FILE CARDS INDEXING B42F13/00Filing appliances with means for engaging perforations or slots

Current Industry

B42F13/0046against ring damage
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    2001651
    • Patent number 2,001,651
    • Issue date May 14, 1935
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    1977897
    • Patent number 1,977,897
    • Issue date Oct 23, 1934
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    1942564
    • Patent number 1,942,564
    • Issue date Jan 9, 1934
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    1934040
    • Patent number 1,934,040
    • Issue date Nov 7, 1933
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    1869937
    • Patent number 1,869,937
    • Issue date Aug 2, 1932
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    1818999
    • Patent number 1,818,999
    • Issue date Aug 18, 1931
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER