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To: scion who wrote (5989)8/16/2006 12:53:46 PM
From: rrm_bcnu  Read Replies (1) | Respond to of 12518
 
Patent No. 4,942,714 Rebar and beam bolster, slab and beam bolster upper; Filed: February 6, 1989; awarded July 24, 1990, expires July 24, 2010.

many people will try to copy good ideas.