Electronic scaling ruler
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United States of America Patent
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Jun 25, 2013
Grant Date -
Jan 10, 2013
app pub date -
Jul 8, 2011
filing date -
Jul 8, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A ruler has a first incremented surface, a second incremented surface, a first side surface, a second side surface, and a bottom surface. All the surfaces connect together forming the general structure of the ruler. The ruler also includes a keypad having a plurality of buttons. In one mode, the ruler measures points on scaled drawings and calculates a scaling factor from those two points. In another mode, the scaling factors are entered directly for use with scaled drawings. The ruler is particularly useful for distorted scaled drawings such as those that have been altered by electronic media.
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