Variable pitch tube propeller,申请号US19500163019-传众专利搜索

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发明名称	Variable pitch tube propeller
摘要
申请公布号	US2605606(A)	申请公布日期	1952.08.05
申请号	US19500163019	申请日期	1950.05.19
申请人	PILZ ALFRED M	发明人	PILZ ALFRED M.
分类号	B63H1/16;B63H3/02;B63H5/14	主分类号	B63H1/16
代理机构		代理人
主权项
地址

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