TREA

Pipe Line Tech., Inc.

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  • Houston, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Low noise rotary control valve
    • Patent number 4,212,321
    • Issue date Jul 15, 1980
    • Butler; J. R.
    • Eldon E. Hulsey
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

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