Life-saving method and apparatus for submarine crews,申请号US19290331369-传众专利搜索

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发明名称	Life-saving method and apparatus for submarine crews
摘要
申请公布号	US1747943(A)	申请公布日期	1930.02.18
申请号	US19290331369	申请日期	1929.01.09
申请人	PAUL LAURENT ERNEST	发明人	LAURENT ERNEST PAUL
分类号	B63G8/41	主分类号	B63G8/41
代理机构		代理人
主权项
地址

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