B - Operations – Transporting – 43 – L
Patent
B - Operations, Transporting
43
L
33/80, 240/89
B43L 13/02 (2006.01)
Patent
CA 1302379
ABSTRACT OF THE DISCLOSURE This invention is a drafting T-square having a slidable and also a pivotable linear scale on a pivotable straight bar of the T-square, and a lamp on the T-square for lighting up the drafting work. -9-
536733
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