Safety stop for shade rollers,申请号US19340751771-传众专利搜索

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发明名称	Safety stop for shade rollers
摘要
申请公布号	US2020595(A)	申请公布日期	1935.11.12
申请号	US19340751771	申请日期	1934.11.06
申请人	FRED B. WALLACE	发明人	WEBER LEONARD P.
分类号	E06B9/80;E06B9/88	主分类号	E06B9/80
代理机构		代理人
主权项
地址

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