Light construction material production (pumice stone),申请号FR19690019308-传众专利搜索

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发明名称	Light construction material production (pumice stone)
摘要
申请公布号	FR2010742(A1)	申请公布日期	1970.02.20
申请号	FR19690019308	申请日期	1969.06.11
申请人	TRASSWERKE MEURIN BETRIE	发明人
分类号	C04B28/26;(IPC1-7):04B29/00;04G21/00;04B31/00	主分类号	C04B28/26
代理机构		代理人
主权项
地址

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