Pivoted link chain,申请号US19430508461-传众专利搜索

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发明名称	Pivoted link chain
摘要
申请公布号	US2427929(A)	申请公布日期	1947.09.23
申请号	US19430508461	申请日期	1943.11.01
申请人	JOY MANUFACTURING COMPANY	发明人	SIMMONS LEON E.
分类号	E21C25/36;F16G13/02	主分类号	E21C25/36
代理机构		代理人
主权项
地址

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