TREA

Chang J. Yee

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  • Billerica, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vacuum roller
    • Patent number 6,464,219
    • Issue date Oct 15, 2002
    • ECRM, Inc.
    • Chang J. Yee
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Method and apparatus for snap-action, split-core roller clamp
    • Patent number 5,449,126
    • Issue date Sep 12, 1995
    • Chang J. Yee
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL