Controllable reversible pitch propeller system,申请号US19530383887-传众专利搜索

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发明名称	Controllable reversible pitch propeller system
摘要
申请公布号	US2776719(A)	申请公布日期	1957.01.08
申请号	US19530383887	申请日期	1953.10.02
申请人	NICHOLS HARRY J	发明人	NICHOLS HARRY J.
分类号	B63H3/04	主分类号	B63H3/04
代理机构		代理人
主权项
地址

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