US PATENT SUBCLASS 4 / 474
.~ Vault type

Current as of: June, 1999
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4 /   HD   BATHS, CLOSETS, SINKS, AND SPITTOONS

449  DF  DRY CLOSETS {14}
474.~ Vault type {1}
475  DF  .~.~> Ventilated

DEFINITION

Classification: 4/474

Vault type:

(under subclass 449) Subject matter wherein there are two receptacles, one being a subchamber.