Underwater breathing mask,申请号US19480050865-传众专利搜索

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发明名称	Underwater breathing mask
摘要
申请公布号	US2477706(A)	申请公布日期	1949.08.02
申请号	US19480050865	申请日期	1948.09.23
申请人	TAYLOR MAX W	发明人	TAYLOR MAX W.
分类号	B63C11/12	主分类号	B63C11/12
代理机构		代理人
主权项
地址

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