Airplane landing ski,申请号US19320598066-传众专利搜索

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发明名称	Airplane landing ski
摘要
申请公布号	US1893647(A)	申请公布日期	1933.01.10
申请号	US19320598066	申请日期	1932.03.10
申请人	KAMMER WILLIAM F	发明人	KAMMER WILLIAM F.
分类号	B64C25/52	主分类号	B64C25/52
代理机构		代理人
主权项
地址

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