US PATENT SUBCLASS 422 / 117
WITH SAFETY FEATURE

Current as of: June, 1999
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422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

117WITH SAFETY FEATURE {1}
118  DF  .~> Preventing opening of closure of pressurized apparatus at unsafe pressure

DEFINITION

Classification: 422/117

WITH SAFETY FEATURE:

(under the class definition) Apparatus having special means for protecting the operator or the environmental area surrounding the apparatus.

SEE OR SEARCH THIS CLASS, SUBCLASS:

113, for apparatus having pop-off valves.