Cage, lander, and gate combination,申请号US19300494305-传众专利搜索

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法人/股东/高管

发明名称	Cage, lander, and gate combination
摘要
申请公布号	US1934869(A)	申请公布日期	1933.11.14
申请号	US19300494305	申请日期	1930.11.08
申请人	THE MINING SAFETY DEVICE COMPANY	发明人	MERRITT GLENN W.
分类号	B66B13/06	主分类号	B66B13/06
代理机构		代理人
主权项
地址

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