Antifrost device and method of making the same,申请号US19280327165-传众专利搜索

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发明名称	Antifrost device and method of making the same
摘要
申请公布号	US1768872(A)	申请公布日期	1930.07.01
申请号	US19280327165	申请日期	1928.12.19
申请人	DURKEE-ATWOOD COMPANY	发明人	WALZ CARL F.
分类号	B60J1/00	主分类号	B60J1/00
代理机构		代理人
主权项
地址

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