US PATENT SUBCLASS 122 / 509
SUBMERGED STEAM CHAMBER

Current as of: June, 1999
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122 /   HD   LIQUID HEATERS AND VAPORIZERS

509SUBMERGED STEAM CHAMBER

DEFINITION

Classification: 122/509

(under the class definition) Subject matter relating to boilers provided with a steam chamber or receiver inside the boiler below the water line.

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36, and 463, for special combinations.