Porthole cover assembly,申请号US19420469524-传众专利搜索

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发明名称	Porthole cover assembly
摘要
申请公布号	US2360554(A)	申请公布日期	1944.10.17
申请号	US19420469524	申请日期	1942.12.19
申请人	ADAM ENGLERT	发明人	ENGLERT ADAM
分类号	B63B19/00	主分类号	B63B19/00
代理机构		代理人
主权项
地址

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