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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
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FR491655D1917-10-021918-09-11Dispositif perfectionné pour fixer les toles de couverture sur la charpente des cloisons et toits de batiments
ExpiredFR491655A
(fr)