发明名称 Measuring device
摘要 A device for measuring lengths of yarn and the like has an elongated base member with a first fixed position post and a second movable post. The second post is moved toward and away from the first post to a preselected position for measuring lengths of yarn and the like. A complete turn of yarn encompassing both posts measures the desired length of yarn.
申请公布号 US4337578(A) 申请公布日期 1982.07.06
申请号 US19810244243 申请日期 1981.03.16
申请人 SEALS, EMERY L. 发明人 SEALS, EMERY L.
分类号 G01B3/04;G01B5/02;(IPC1-7):G01B5/02 主分类号 G01B3/04
代理机构 代理人
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