Safety means for mine cages,申请号US19440524621-传众专利搜索

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发明名称	Safety means for mine cages
摘要
申请公布号	US2403333(A)	申请公布日期	1946.07.02
申请号	US19440524621	申请日期	1944.03.01
申请人	EDWIN BJERKE	发明人	BJERKE EDWIN
分类号	B66B5/26	主分类号	B66B5/26
代理机构		代理人
主权项
地址

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