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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11/00
Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
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E04G11/06
for walls, e.g. curved; end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
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E04G11/08
Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
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E04G11/082
Retractable forms for the inside face of at least three walls
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