Safety face mask,申请号US19640367654-传众专利搜索

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发明名称	Safety face mask
摘要
申请公布号	US3298031(A)	申请公布日期	1967.01.17
申请号	US19640367654	申请日期	1964.05.15
申请人	GENERAL DYNAMICS CORPORATION	发明人	MORGAN HAROLD JOSEPH
分类号	A61F9/02	主分类号	A61F9/02
代理机构		代理人
主权项
地址

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