TREA

Seng Y. Chung

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  • Singapore, SG
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Patents Grantslast 30 patents

  • Information Patent Grant

    Re-inking device
    • Patent number 5,372,438
    • Issue date Dec 13, 1994
    • Seng Y. Chung
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Re-inking device and method
    • Patent number 5,005,997
    • Issue date Apr 9, 1991
    • Seng Y. Chung
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS