Zipper seal for expandable house trailer,申请号US19570638848-传众专利搜索

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发明名称	Zipper seal for expandable house trailer
摘要
申请公布号	US2850320(A)	申请公布日期	1958.09.02
申请号	US19570638848	申请日期	1957.02.07
申请人	GROCHMAL RICHARD S	发明人	GROCHMAL RICHARD S.
分类号	B60P3/34	主分类号	B60P3/34
代理机构		代理人
主权项
地址

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