G - Physics – 01 – D
Patent
G - Physics
01
D
G01D 21/02 (2006.01) G01B 3/04 (2006.01) G01B 3/16 (2006.01) G01B 3/56 (2006.01) G01B 5/24 (2006.01) G01C 15/10 (2006.01)
Patent
CA 2510829
A multipurpose angle measurement tool generally comprises a top ruler and a bottom ruler which are rotationally attached to each other. Bath the top and bottom rulers have both metric and american measurement indicias. The top ruler has a vernier window through which are seen degree angles. A tightening knob controls a tightening means which allows the possibility of selectively choosing whether the two rulers should be locked in a given configuration or allowed to freely move relative to each other such as when indicating deviation from the horizontal or the vertical by letting one of the rulers (top or bottom ) swing as a pendulum and be stopped by gravity.
Na
Roy Fernand
LandOfFree
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