VARIABLE PITCH AIRSCREW,申请号CAD424263-传众专利搜索

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发明名称	VARIABLE PITCH AIRSCREW
摘要
申请公布号	CA424263(A)	申请公布日期	1944.12.05
申请号	CAD424263	申请日期
申请人	ROTOL AIRSCREWS LIMITED	发明人	ROBERT HENRY COVERLEY;DAVID DUNDAS ARNOTT
分类号		主分类号
代理机构		代理人
主权项
地址

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