B - Operations – Transporting – 43 – L
Patent
B - Operations, Transporting
43
L
33/69
B43L 7/00 (2006.01)
Patent
CA 1302701
ABSTRACT OF THE DISCLOSURE A combined tri-square and protractor is structured to measure a right angle, to measure center of a pipe and to measure various angles therefrom. -10-
597545
Roach Daniel F.
Spector George
Na
Roach Daniel F.
Spector George
LandOfFree
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