Resilient shape-retaining fibrous filtration face mask,申请号US19860848757-传众专利搜索

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发明名称	Resilient shape-retaining fibrous filtration face mask
摘要
申请公布号	US4807619(A)	申请公布日期	1989.02.28
申请号	US19860848757	申请日期	1986.04.07
申请人	MINNESOTA MINING AND MANUFACTURING COMPANY	发明人	DYRUD, JAMES F.;BERG, HARVEY J.;MURRAY, ALICE C.
分类号	A61M16/06;A41D13/11;A62B7/10;A62B18/02;A62B23/02;A62D7/00;B01D39/16;B32B5/26;D04H1/42;D04H1/54;(IPC1-7):A62B7/10	主分类号	A61M16/06
代理机构		代理人
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