Rate measuring device,申请号US19410385577-传众专利搜索

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发明名称	Rate measuring device
摘要
申请公布号	US2306360(A)	申请公布日期	1942.12.22
申请号	US19410385577	申请日期	1941.03.27
申请人	BENDIX AVIATION CORPORATION	发明人	JR. ALFRED A. STUART,
分类号	E21B44/00;G01P3/44	主分类号	E21B44/00
代理机构		代理人
主权项
地址

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