Patent classifications
A
HUMAN NECESSITIES
Load children
A43
FOOTWEAR
Load children
A43B
CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
Load children
21/00
Heels; Top-pieces or top-lifts
Load children Filter patents View analytics View as hierarchy
A43B21/36
characterised by their attachment; Securing devices for the attaching means
Load children Filter patents View analytics View as hierarchy
A43B21/45
with special tensioning means
Filter patents View analytics View as hierarchy