US PATENT SUBCLASS 122 / 26
FRICTION GENERATOR

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

26FRICTION GENERATOR

DEFINITION

Classification: 122/26

(under the class definition) Boilers heated by friction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

380, for boilers having mechanically operated cleaning

agitators.

411, for mechanical circulating devices.

SEE OR SEARCH CLASS

126, Stoves and Furnaces, 247, for other frictional heaters.