Invention Grant
US09573421B2 Fastener and dolly 有权
紧固件和小车

Fastener and dolly
Abstract:
A dolly comprising a chassis, a castor having a fork and a wheel rotatably mounted to the fork, and a fastener for fixing the fork of the castor to the chassis of the dolly. The fastener comprises a head which is shaped to the peripheral shape of the wheel of the castor.
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