发明名称 TEMPORARY PROTECTIVE BARRIER FOR ROOF TOP WORKERS
摘要 The embodiment of this invention in which an exclusive property or privilege is claimed are defined as follows: 1. This invention as a TEMPORARY PROTECTION BARRIER FOR ROOF TOP WORKMAN AND MATERIALS from falling from rooftops. 2. The system consists of "Metal Main Member" which is reinforced and hangs over an outside wall of the building. The "Main Member" has attached by pins or bolts a "Second Metal Member", which has attached to 3 brackets which hold the 2 x 6 guardrails. 3. The system can be expanded and lengthened by adding a number "Main Member" and "Second Member" and guardrails.
申请公布号 CA2452985(A1) 申请公布日期 2005.06.08
申请号 CA20032452985 申请日期 2003.12.08
申请人 GREGORY, BARRY DALE 发明人 GREGORY, BARRY DALE
分类号 E04G21/32;(IPC1-7):E04G21/32;E04H17/14 主分类号 E04G21/32
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