Flexible face masks,申请号US19550547009-传众专利搜索

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发明名称	Flexible face masks
摘要
申请公布号	US2855924(A)	申请公布日期	1958.10.14
申请号	US19550547009	申请日期	1955.11.15
申请人	WOOD EDWIN E;HAFFERTY WILLIAM A	发明人	WOOD EDWIN E.;HAFFERTY WILLIAM A.
分类号	A62B18/02	主分类号	A62B18/02
代理机构		代理人
主权项
地址

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