TREA

Dietmar Stapelfeld

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  • Marshfield, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Two-part frame and pre-tensioning device therefor
    • Patent number 5,355,792
    • Issue date Oct 18, 1994
    • WearGuard Corporation
    • George MacNaughton
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Emulsion coater
    • Patent number 5,326,401
    • Issue date Jul 5, 1994
    • Wearguard Corp.
    • George MacNaughton
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS