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E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
E04D3/36—Connecting; Fastening
E04D3/365—Connecting; Fastening by simple overlapping of the marginal portions with use of separate connecting elements, e.g. hooks or bolts for corrugated sheets
FR591438D1925-01-071925-01-07
Clip device for corrugated sheet roofs, asbestos, cement, etc.
ExpiredFR591438A
(en)