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Improvements in toy three-wheeled trucks or carriages propelled by the rider
Improvements in toy three-wheeled trucks or carriages propelled by the rider
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机译:骑手推动的玩具三轮卡车或小车的改进
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摘要
139,556. Grice, H., and Goodwin, A. Jan. 21, 1919. Chain-wheels.- To prevent lateral displacement of a reciprocating driving- chain, the chainwheel g is provided with side disks h. Reference has been directed by the Comptroller to Specification 26451/01.
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