Patent classifications
E
FIXED CONSTRUCTIONS
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E06
DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
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E06C
LADDERS
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7/00
Component parts, supporting parts, or accessories
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E06C7/48
Ladder heads; Supports for heads of ladders for resting against objects
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E06C7/482
Supports specially adapted for resting the ladder against or in a corner
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