G - Physics – 01 – C
Patent
G - Physics
01
C
33/110, 33/76, 3
G01C 9/00 (2006.01) B43L 7/00 (2006.01) G01B 3/08 (2006.01)
Patent
CA 1307394
ABSTRACT RULER APPARATUS COMPRISING A MEASURING STICK, SPIRIT LEVEL AND STRAIGHT EDGE COMBINED Measuring apparatus having at least one measuring scale for effecting measurements, a straight edge for marking straight lines, a spirit level for testing for horizontality, and a friction-creating device for providing a grip for the measuring apparatus on a surface against which the measuring apparatus is to be used.
600587
Finlayson & Singlehurst
Worrallo Anthony C.
LandOfFree
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