US PATENT SUBCLASS 122 / 168
.~.~.~ Central magazine

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

135.1  DF  FLUE {4}
155.1  DF  .~ Vertical {16}
166.1  DF  .~.~ With internal water tube {12}
168.~.~.~ Central magazine

DEFINITION

Classification: 122/168

(under subclass 166) Devices with a fuel magazine centrally located in the flue.

SEE OR SEARCH THIS CLASS, SUBCLASS:

117, and 128, for vertical fire tube boilers with a central magazine.

158, and 162, for other vertical flue boilers having a central fuel magazine.