Process for the preparation of insulation material,申请号US19380233519-传众专利搜索

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发明名称	Process for the preparation of insulation material
摘要
申请公布号	US2292012(A)	申请公布日期	1942.08.04
申请号	US19380233519	申请日期	1938.10.06
申请人	UNITED STATES GYPSUM COMPANY	发明人	PARSONS JOSEPH R.
分类号	C04B28/02;C04B38/10	主分类号	C04B28/02
代理机构		代理人
主权项
地址

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