Roller attachment for sleds,申请号US19390301276-传众专利搜索

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发明名称	Roller attachment for sleds
摘要
申请公布号	US2236331(A)	申请公布日期	1941.03.25
申请号	US19390301276	申请日期	1939.10.25
申请人	COFSKY EUGENE L	发明人	COFSKY EUGENE L.
分类号	B62B13/00;B62B13/18	主分类号	B62B13/00
代理机构		代理人
主权项
地址

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