E - Fixed Constructions – 04 – D
Patent
E - Fixed Constructions
04
D
E04D 15/00 (2006.01)
Patent
CA 2738130
A locking device that prevents a rooftop support device from being separated into upper and lower parts is disclosed. The locking device stops the lower base from being fully unscrewed from the upper platform. The device automatically releases to allow the lower base to be screwed back onto the upper platform.
Macrae & Co.
Thomas & Betts International Inc.
LandOfFree
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