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Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
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B62B
HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
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2205/00
Hand-propelled vehicles or sledges being foldable or dismountable when not in use
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B62B2205/14
Retractable wheels
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B62B2205/145
retractable in the direction of the shaft, e.g. with telescopic shafts
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