Patent classifications
E
FIXED CONSTRUCTIONS
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E04
BUILDING
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E04D
ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
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1/00
Roof covering by making use of tiles, slates, shingles, or other small roofing elements
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E04D1/29
Means for connecting or fastening adjacent roofing elements
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E04D1/2907
by interfitted sections
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E04D1/2914
having fastening means or anchors at juncture of adjacent roofing elements
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E04D1/2916
the fastening means taking hold directly on adjacent elements of the same row
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