Screen for optical displacement gauges,申请号US19460652907-传众专利搜索

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发明名称	Screen for optical displacement gauges
摘要
申请公布号	US2472380(A)	申请公布日期	1949.06.07
申请号	US19460652907	申请日期	1946.03.08
申请人	LONG JOHN H	发明人	LONG JOHN H.
分类号		主分类号
代理机构		代理人
主权项
地址

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