US PATENT SUBCLASS 44 / 629
APPARATUS FOR MAKING OR TREATING FUEL COMPOSITION


Current as of: June, 1999
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44 /   HD   FUEL AND RELATED COMPOSITIONS

629APPARATUS FOR MAKING OR TREATING FUEL COMPOSITION {3}
630  DF  .~> Peat {2}
634  DF  .~> Briquetting {1}
639  DF  .~> Liquid


DEFINITION

Classification: 44/629

APPARATUS FOR MAKING OR TREATING FUEL COMPOSITION:

(under the class definition) Apparatus for performing a process of this class.

(1) Note. A patent for apparatus performing only one operation or function, and or general character or utility, but which may be used in fuel-making, such as stirring, sawing, sifting, pressing, etc., is usually classed with a patent in the more general class, unless specifically limited to the making of fuel.

SEE OR SEARCH CLASS

100, Presses,

70+, for presses combined with means to additionally treat the material.

144, Woodworking,

50+, for a wood match-making process or apparatus.

202, Distillation: Apparatus. 209, Classifying, Separating, and Assorting Solids.

241, Solid Material Comminution or Disintegration, appropriate subclasses for comminution combined with prior shaping operations.

366, Agitation, appropriate subclasses for agitation devices absent molding means.

422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing.