Patent classifications
A
HUMAN NECESSITIES
Load children
A63
SPORTS; GAMES; AMUSEMENTS
Load children
A63C
SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
Load children
A63C5/06
with special devices thereon, e.g. steering devices
Load children Filter patents View analytics View as hierarchy
A63C5/07
comprising means for adjusting stiffness
Filter patents View analytics View as hierarchy