APPARATUS FOR REMOVING SNOW FROM PITCHED ROOFS,申请号USD3431972-传众专利搜索

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发明名称	APPARATUS FOR REMOVING SNOW FROM PITCHED ROOFS
摘要
申请公布号	US3431972(A)	申请公布日期	1969.03.11
申请号	USD3431972	申请日期	1967.11.20
申请人	OSCAR BERNARDI & CO.	发明人	OSCAR BERNARDI
分类号	E04D13/10;(IPC1-7):F24H3/00	主分类号	E04D13/10
代理机构		代理人
主权项
地址

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