WHAT DOES COUPON CODES FOR GROUPON MEAN?

The method of declare 1, The coupon offering unit, Coupon supplying program for generating the first coupon or the next coupon while in the form of a barcode and transmits to the mobile terminal. 제1항에 있어서,를 더 포함하는 쿠폰 제공 방법.ten. The strategy of claim 9, Transmitting a callback message like a callback URL connected