E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
E06B 1/70 (2006.01) E06B 7/14 (2006.01) E06B 7/16 (2006.01)
Patent
CA 2131958
A closure for a drainage port or a weeping port for a closure assembly assisted by gravity to and from a closed position.
Davies J. Robert
Kupenthirarajan Sinnathamby
420820 Ontario Limited
Heenan Blaikie Llp
LandOfFree
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