Porous material manufacture,申请号US19370182463-传众专利搜索

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发明名称	Porous material manufacture
摘要
申请公布号	US2215223(A)	申请公布日期	1940.09.17
申请号	US19370182463	申请日期	1937.12.30
申请人	PITTSBURGH PLATE GLASS COMPANY	发明人	LYTLE WILLIAM O.
分类号	C03B19/08	主分类号	C03B19/08
代理机构		代理人
主权项
地址

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