US PATENT SUBCLASS 131 / 313
.~ Leaf stemming

Current as of: June, 1999
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131 /   HD   TOBACCO

290  DF  TOBACCO TREATMENT {8}
313.~ Leaf stemming {5}
314  DF  .~.~> With stem cleaning
315  DF  .~.~> And straightening, smoothing, flattening, or cleaning {1}
318  DF  .~.~> By fluid current
319  DF  .~.~> By tearing {2}
322  DF  .~.~> By cutting {1}

DEFINITION

Classification: 131/313

Leaf stemming:

(under subclass 290) Process or apparatus for removing the stem from a tobacco leaf.

(1) Note. This subclass includes a process or apparatus for reducing the leaf stem by abrading or attrition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

311+, for stemming by disintegration.