Method of producing artificial ice,申请号US19290370611-传众专利搜索

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发明名称	Method of producing artificial ice
摘要
申请公布号	US1936770(A)	申请公布日期	1933.11.28
申请号	US19290370611	申请日期	1929.06.13
申请人	POWNALL GEORGE L	发明人	POWNALL GEORGE L.
分类号	F25C1/18	主分类号	F25C1/18
代理机构		代理人
主权项
地址

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