US PATENT SUBCLASS 52 / 196
.~ Framed port in wall

Current as of: June, 1999
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52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

192  DF  FLUENT MATERIAL HOPPER OR STORAGE CONTAINER WITH MATERIAL PORT {5}
196.~ Framed port in wall

DEFINITION

Classification: 52/196

(under subclass 192) Structure in which the port is defined by a discrete frame structure mounted in the container or receptacle structure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

204.1+, for a construction having a feature for a closure or window opening.