Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
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B62M
RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR; SINGLE-TRACK; CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
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6/00
Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
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B62M6/40
Rider propelled cycles with auxiliary electric motor
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B62M6/75
power-driven by friction rollers or gears engaging the ground wheel
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