US PATENT SUBCLASS 52 / 302.7
.~ Including a plug for drain or vent

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

302.1  DF  WALL, CEILING, FLOOR, OR ROOF DESIGNED FOR VENTILATION OR DRAINAGE {5}
302.7.~ Including a plug for drain or vent

DEFINITION

Classification: 52/302.7

Including a plug for drain or vent:

(under subclass 302.1) Wall, ceiling, floor, or roof in which a distinct device closes the fluid conveying means.