Scraper-blade attachment for brooms,申请号US19280311348-传众专利搜索

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发明名称	Scraper-blade attachment for brooms
摘要
申请公布号	US1760648(A)	申请公布日期	1930.05.27
申请号	US19280311348	申请日期	1928.10.09
申请人	JOHNS HERMAN S	发明人	JOHNS HERMAN S.
分类号	B25G3/30	主分类号	B25G3/30
代理机构		代理人
主权项
地址

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