Window sash balance,申请号US19350006219-传众专利搜索

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发明名称	Window sash balance
摘要
申请公布号	US2067164(A)	申请公布日期	1937.01.05
申请号	US19350006219	申请日期	1935.02.12
申请人	BRUCE W. SMITH	发明人	SMITH JAMES W.
分类号	E05D13/00	主分类号	E05D13/00
代理机构		代理人
主权项
地址

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