A new system for the incrementation of sales in chain (Machine-translation by Google Translate, not legally binding)

摘要

New system for the increase of sales chadenacharacterized because it consists in the delivery of coupons to the consumer with the purpose of granting the particular faculty to effect without disbursement a purchase of gender for value equal to the heat of the coupons that fill a whole book previously acquired by the consumer with whose operation is benefited this in the proportion that it represents to acquire with each notebook of 680 stamps genders by value of 1950 pesetas. (Machine-translation by Google Translate, not legally binding)