Patent classifications
E
FIXED CONSTRUCTIONS
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E04
BUILDING
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E04G
SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
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21/00
Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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E04G21/24
Safety or protective measures preventing damage to building parts or finishing work during construction
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E04G21/246
specially adapted for curing concrete in situ, e.g. by covering it with protective sheets
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