发明名称 Proportional divider
摘要 A proportional divider is provided with two leg members connected by a slidable pivot assembly. The slidable pivot assembly is frictionally attached to each leg member by a shallow u-shaped member. The distal ends of the leg members taper to a point. Both leg members are solid, integral, and of one piece construction. A proportional scale is provided on the leg members.
申请公布号 US5154004(A) 申请公布日期 1992.10.13
申请号 US19910795836 申请日期 1991.11.21
申请人 ALLEN, JAMES Q. 发明人 ALLEN, JAMES Q.
分类号 B43L9/12;G01B3/06 主分类号 B43L9/12
代理机构 代理人
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