" EFG 112-A. PATENT 4,125,662. WAREHAM ELECTRIC COMPANY, BOSTON. TOLERANCES 1–20 MG, .1–15 MT. “ ‘mG,’ ” Logan read aloud. “Do you suppose that’s milligauss?” “I think so. And I think mT stands for microtesla. "
― Lincoln Child , The Forgotten Room (Jeremy Logan, #4)