Crossword clues for Uses a ruler:METRICSYSTEMMany of the world's rulers use itSHAHPENNERTo assist him in writing a neat book, the ruler used a __TSARSRulers used to make many crosswords?MEASURESUses a rulerMEASUREUse a rulerEMIRTitle not actually used by U.A.E. rulersIVANRuler who was the first to use the title 30-Across
