Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B60
VEHICLES IN GENERAL
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B60R
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
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22/00
Safety belts or body harnesses in vehicles
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B60R22/34
Belt retractors, e.g. reels
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B60R22/44
with means for reducing belt tension during use under normal conditions
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B60R2022/442
using one spring and one additional retraction device in parallel
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B60R2022/4426
the additional retraction device being a second spring
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B60R2022/4433
externally controlled
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