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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2206/00
Adjustable or convertible hand-propelled vehicles or sledges
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B62B2206/02
adjustable in length or width
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B62B2206/04
only the load support being adjustable
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