Method and apparatus for setting screens,申请号US19300428009-传众专利搜索

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发明名称	Method and apparatus for setting screens
摘要
申请公布号	US1888405(A)	申请公布日期	1932.11.22
申请号	US19300428009	申请日期	1930.02.13
申请人	MANNING SANFORD E	发明人	MANNING SANFORD E.
分类号	E21B43/10	主分类号	E21B43/10
代理机构		代理人
主权项
地址

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