弹簧水泥枕木,申请号TW001987-传众专利搜索

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发明名称	弹簧水泥枕木
摘要
申请公布号	TW000709	申请公布日期	1957.06.01
申请号	TW001987	申请日期	1957.03.18
申请人	吴坤金	发明人	吴坤金
分类号	E01B	主分类号	E01B
代理机构		代理人
主权项
地址	台湾省台中巿民权路122号

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