Rule protractor

Details Rule protractor Rule protractor

B - Operations, Transporting

43

L

33/82

B43L 13/00 (2006.01)

Patent

CA 1058858

ABSTRACT OF THE DISCLOSURE A quadrant for use by draftsmen; the device consisting of two arms attached pivotally together at one end, and including degree calibration, so the angle between the arms is readily read, and the device including locking means whereby the angle between the arms can be maintained fixed.

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