US PATENT SUBCLASS 110 / 280
.~.~.~ Multiple retort

Current as of: June, 1999
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110 /   HD   FURNACES

267  DF  INCLUDING MEANS TO FEED SOLID FUEL {4}
268  DF  .~ Movable grate {5}
278  DF  .~.~ Oscillatory {2}
280.~.~.~ Multiple retort

DEFINITION

Classification: 110/280

Multiple retort:

(under subclass 278) Apparatus provided with plurality of grate assemblages.