US PATENT SUBCLASS 137 / 905
ROTARY VALVES FOR MULTIPLE GAS BURNERS
Current as of:
June, 1999
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137 /
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FLUID HANDLING
905
ROTARY VALVES FOR MULTIPLE GAS BURNERS
DEFINITION
Classification: 137/905
ROTARY VALVES FOR MULTIPLE GAS BURNERS:
(under the class definition) Art collection drawn to rotary valves for multiple gas burners.
