Helicopter flying apparatus,申请号US19430498075-传众专利搜索

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发明名称	Helicopter flying apparatus
摘要
申请公布号	US2417896(A)	申请公布日期	1947.03.25
申请号	US19430498075	申请日期	1943.08.10
申请人	ZIMMERMAN CHARLES H	发明人	ZIMMERMAN CHARLES H.
分类号	B64C39/02	主分类号	B64C39/02
代理机构		代理人
主权项
地址

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AGENT FOR PROPHYLAXIS AND TREATMENT OF PANCREATIC DISEASE OR THE LIKE.