E - Fixed Constructions – 04 – D
Patent
E - Fixed Constructions
04
D
20/20.2
E04D 5/12 (2006.01)
Patent
CA 1234272
ABSTRACT OF THE DISCLOSURE Sheet of roof-covering material comprises a porous base- layer with apertures distributed over its surface. The base layer, at its upper side, is provided with a liquid- and/or vapor tight coating, onto which a bituminous adhering layer or a bituminous top layer has been applied.
468599
Fetherstonhaugh & Co.
Modiglass Modified Asphalt- And Glassmatmachines Ltd.
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