US PATENT SUBCLASS 425 / 815
CHEMICALLY INERT OR REACTIVE ATMOSPHERE

Current as of: June, 1999
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425 /   HD   PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS

815CHEMICALLY INERT OR REACTIVE ATMOSPHERE

DEFINITION

Classification: 425/815

Apparatus in which the shaping operation is performed in chemical atmosphere which either inhibits or accelerates chemical reaction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

73+, for shaping apparatus including a ventilating type hood encasing a material handler.