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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9/00
Forming or shuttering elements for general use
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E04G9/10
with additional peculiarities such as surface shaping, insulating or heating, permeability to water or air
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