Tube-centering mechanism,申请号US19280290424-传众专利搜索

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发明名称	Tube-centering mechanism
摘要
申请公布号	US1746696(A)	申请公布日期	1930.02.11
申请号	US19280290424	申请日期	1928.07.05
申请人	DOWS WALTER G	发明人	DOWS WALTER G.
分类号	E04G15/06	主分类号	E04G15/06
代理机构		代理人
主权项
地址

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