using absorbent pads

Patents Grantslast 30 patents

  • Information Patent Grant

    3776133

    • Patent number 3,776,133
    • Issue date Dec 4, 1973
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    2260659

    • Patent number 2,260,659
    • Issue date Oct 28, 1941
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS