Method and apparatus for relatively moving two elements,申请号US19420461222-传众专利搜索

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发明名称	Method and apparatus for relatively moving two elements
摘要
申请公布号	US2350212(A)	申请公布日期	1944.05.30
申请号	US19420461222	申请日期	1942.10.07
申请人	THE CALPAT CORPORATION	发明人	JR. ALBERT G. BODINE,
分类号	E21B47/00	主分类号	E21B47/00
代理机构		代理人
主权项
地址

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