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Grab a 1/2 Price Cheeseburger on Tuesday, April 18th ONLY! Check With Your Local Sonic Drive-In For Participation. Offer valid only on April 18, 2017, while supplies last. Add-Ons cost extra. Not good in conjunction with Combos or any other offers. Only at participating SONIC Drive-Ins. Please visit SONIC website for exclusions, locations participation and more!
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