Spring seat construction,申请号US19380191907-传众专利搜索

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发明名称	Spring seat construction
摘要
申请公布号	US2195759(A)	申请公布日期	1940.04.02
申请号	US19380191907	申请日期	1938.02.23
申请人	KROEHLER MFG. CO.	发明人	SCHIELD WESLEY D.
分类号	A47C7/35	主分类号	A47C7/35
代理机构		代理人
主权项
地址

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