海绵安全口罩,申请号TW008760-传众专利搜索

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发明名称	海绵安全口罩
摘要
申请公布号	TW003991	申请公布日期	1968.06.01
申请号	TW008760	申请日期	1967.11.28
申请人	杨栋沂	发明人	杨栋沂
分类号	A61F	主分类号	A61F
代理机构		代理人
主权项
地址	台北巿中山区伊通街59巷4号

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