Variable blade system,申请号US19570659742-传众专利搜索

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发明名称	Variable blade system
摘要
申请公布号	US2972441(A)	申请公布日期	1961.02.21
申请号	US19570659742	申请日期	1957.05.14
申请人	GENERAL MOTORS CORPORATION	发明人	HALL RUSSELL S.
分类号	F01D17/16	主分类号	F01D17/16
代理机构		代理人
主权项
地址

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