US PATENT SUBCLASS 122 / 136 C
.~.~ Horizontal-corrugated or finned

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

135.1  DF  FLUE {4}
136 R  DF  .~ Horizontal {7}
136 C.~.~ Horizontal-corrugated or finned

Unofficial Alpha Subclasses: R C

DEFINITION

Classification: 122/136

(under subclass 135) Subject matter placed horizontally, not otherwise provided for.

SEE OR SEARCH THIS CLASS, SUBCLASS:

47, for miscellaneous fire tube boilers having a large

horizontal flue.

78, for horizontal return fire tube boilers with a horizontal flue firebox.

80, for horizontal fire tube boilers with a large flue boiler section beneath the boiler.

409+, for similar structure used in regulating circulation.