Method of and apparatus for scoring blocks,申请号US19270185471-传众专利搜索

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发明名称	Method of and apparatus for scoring blocks
摘要
申请公布号	US1787219(A)	申请公布日期	1930.12.30
申请号	US19270185471	申请日期	1927.04.21
申请人	UNITED STATES GYPSUM COMPANY	发明人	TROTTER FRED;SWANSON ARTHUR
分类号	B28B11/08	主分类号	B28B11/08
代理机构		代理人
主权项
地址

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