US PATENT SUBCLASS 52 / 720.3
.~ Security bar

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)

720.1  DF  SHAFT (I.E., ELONGATED RIGID STRUCTURE) {15}
720.3.~ Security bar

DEFINITION

Classification: 52/720.3

Security bar:

(under subclass 720.1) Subject matter wherein the shaft's structure is configured to prohibit entry or egress (e.g., to a jail cell, vault, etc.).