for concrete pipe-lines

Patents Grantslast 30 patents

  • Information Patent Grant

    2182995

    • Patent number 2,182,995
    • Issue date Dec 12, 1939
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2173792

    • Patent number 2,173,792
    • Issue date Sep 19, 1939
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2042132

    • Patent number 2,042,132
    • Issue date May 26, 1936
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2028668

    • Patent number 2,028,668
    • Issue date Jan 21, 1936
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1927987

    • Patent number 1,927,987
    • Issue date Sep 26, 1933
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1900145

    • Patent number 1,900,145
    • Issue date Mar 7, 1933
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1847676

    • Patent number 1,847,676
    • Issue date Mar 1, 1932
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1829236

    • Patent number 1,829,236
    • Issue date Oct 27, 1931
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1691590

    • Patent number 1,691,590
    • Issue date Nov 13, 1928
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1668823

    • Patent number 1,668,823
    • Issue date May 8, 1928
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1621950

    • Patent number 1,621,950
    • Issue date Mar 22, 1927
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1615239

    • Patent number 1,615,239
    • Issue date Jan 25, 1927
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1574956

    • Patent number 1,574,956
    • Issue date Mar 2, 1926
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1570223

    • Patent number 1,570,223
    • Issue date Jan 19, 1926
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1530105

    • Patent number 1,530,105
    • Issue date Mar 17, 1925
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1526088

    • Patent number 1,526,088
    • Issue date Feb 10, 1925
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1507420

    • Patent number 1,507,420
    • Issue date Sep 2, 1924
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1484355

    • Patent number 1,484,355
    • Issue date Feb 19, 1924
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1435175

    • Patent number 1,435,175
    • Issue date Nov 14, 1922
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1424586

    • Patent number 1,424,586
    • Issue date Aug 1, 1922
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1401105

    • Patent number 1,401,105
    • Issue date Dec 20, 1921
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1388558

    • Patent number 1,388,558
    • Issue date Aug 23, 1921
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1346687

    • Patent number 1,346,687
    • Issue date Jul 13, 1920
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...