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发明名称	PROPELLER
摘要
申请公布号	CA375999(A)	申请公布日期	1938.08.23
申请号	CAD375999	申请日期
申请人	JOHN W. ROXBOROUGH	发明人	JOSEPH N. BLAIR
分类号		主分类号
代理机构		代理人
主权项
地址

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