Patent classifications
E
FIXED CONSTRUCTIONS
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E04
BUILDING
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E04F
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
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21/00
Implements for finishing work on buildings
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E04F21/165
for finishing joints, e.g. implements for raking or filling joints, jointers
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E04F21/1652
for smoothing and shaping joint compound to a desired contour
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