Buoyant drum for motor pontoons,申请号US19270180845-传众专利搜索

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发明名称	Buoyant drum for motor pontoons
摘要
申请公布号	US1819409(A)	申请公布日期	1931.08.18
申请号	US19270180845	申请日期	1927.04.04
申请人	DU MOND CHESTER J	发明人	MOND CHESTER J. DU
分类号	B63H1/04	主分类号	B63H1/04
代理机构		代理人
主权项
地址

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