TREA

Dortzbach; Wrenetta R.

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  • Clayton, CA, US
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  • Information Patent Grant

    Chimney top spark arrester and damper
    • Patent number 5,848,931
    • Issue date Dec 15, 1998
    • Dortzbach; Richard A.
    • Richard A. Dortzbach
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES

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