US PATENT SUBCLASS 425 / 816
GAS MASK

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

816GAS MASK

DEFINITION

Classification: 425/816

Apparatus for shaping a member to fit over and be complementary to the face of an animal and to prevent breathing except through a predetermined fluid handling system; these devices are commonly called gas masks or respirators.

SEE OR SEARCH CLASS

128, Surgery,

200.24+, for respirators or gas masks, per se.