Window washer's scaffold,申请号US19460697547-传众专利搜索

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发明名称	Window washer's scaffold
摘要
申请公布号	US2491621(A)	申请公布日期	1949.12.20
申请号	US19460697547	申请日期	1946.09.17
申请人	JOHANNES ROOS CHARLES	发明人	ROOS CHARLES JOHANNES
分类号	A47L3/02;F16H29/02	主分类号	A47L3/02
代理机构		代理人
主权项
地址

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