Underwater breathing apparatus,申请号US19550512223-传众专利搜索

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发明名称	Underwater breathing apparatus
摘要
申请公布号	US2900977(A)	申请公布日期	1959.08.25
申请号	US19550512223	申请日期	1955.05.31
申请人	MARSH DE LOSS L	发明人	MARSH DE LOSS L.
分类号	B63C11/24	主分类号	B63C11/24
代理机构		代理人
主权项
地址

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