Improved variable pitch propeller,申请号GB19500028516-传众专利搜索

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发明名称	Improved variable pitch propeller
摘要
申请公布号	GB685888(A)	申请公布日期	1953.01.14
申请号	GB19500028516	申请日期	1950.11.22
申请人	MAXIME DE LAGREVOL;ROGER LABOUREIX	发明人
分类号	B64C11/34	主分类号	B64C11/34
代理机构		代理人
主权项
地址

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