Cash registers

Mercury -130

In most foreign countries Cash registers have two checkbooks tape. One tear you check, the other should be kept in the company (up to three years). Imagine a warehouse store Auchan to check :)

In Russia the second tape replaces the electronic control tape Protected (EKLZ), in which all entries are duplicated fiscal memory.

Mathematics and encryption systems have always been developed in Russia.
Scheme EKLZ available, but about breaking encryption unknown.
Electronic control tape was developed and implemented in Europe
only in Russian.

Mercury-140

Mercury-160

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