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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E06C7/50
Joints or other connecting parts
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E06C7/505
Anchors being adapted to fix a ladder to a vertical structure, e.g. ladder hooks
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