发明名称 Take-out meter for use in association with a conventional retractable measuring tape
摘要 A take-out meter for attachment to a conventional metal retractable tape measure permitting use of the tape measure with architectural/engineering drawing measurements without the need for repetitive subtractions of fittings measurements.
申请公布号 US5815940(A) 申请公布日期 1998.10.06
申请号 US19970847562 申请日期 1997.04.24
申请人 VALENTINE, SR., COOPER 发明人 VALENTINE, SR., COOPER
分类号 G01B3/10;(IPC1-7):G01B3/10 主分类号 G01B3/10
代理机构 代理人
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