E - Fixed Constructions – 04 – B
Patent
E - Fixed Constructions
04
B
E04B 1/70 (2006.01) E04B 5/02 (2006.01) E04B 7/20 (2006.01) E04C 2/32 (2006.01)
Patent
CA 2289234
Dans la présente invention le principe novateur consiste à onduler le métal servant à fabriquer des panneaux et dalles de soutien afin d'y insérer des chambres d'air évitant ainsi les moisissures.
Na
Roy Roland
LandOfFree
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