Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Reexamination Certificate
2006-09-05
2006-09-05
Guadalupe-McCall, Yaritza (Department: 2859)
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
C033S0010BB, C033S483000, C033S494000
Reexamination Certificate
active
07100295
ABSTRACT:
A measuring device includes a square ruler body provided with a plurality of scales, a plurality of marking lines, and a plurality of counting numbers. Each of the counting numbers has a corresponding numeral which is located under the respective the counting number for measurement of different directions. Thus, the measuring device is used to measure the size of the workpiece at any direction and any start point, thereby greatly saving the measuring time and the manual work. In addition, the counting numbers have a two-dimensional corresponding manner so that the measuring device can obtain the size of the workpiece instantaneously from left to right or from right to left without having to rotate or change the direction of the ruler body.
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patent: 2005/0178013 (2005-08-01), Schafer et al.
Guadalupe-McCall Yaritza
Kamrath Alan D.
Nikolai & Mersereau , P.A.
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