MEMENTO-ETUI FÜR SCHECKKARTEN ODER DERGLEICHEN.

摘要

2058950 9015551 PCTABS00002 A holder (10) for a credit card, a bank card, a charge card or the like (C) comprising a compartment for accommodating said card, switching means arranged in said compartment for activation by said card, warning means activated by the switching means and calculating means; these calculating means comprising a memory of which the contents remain in memory even when the calculating means are switched off, arithmetical and/or logical means for carrying out, via a keyboard (34), operations of which the results are recorded in said memory, and display means (33) for displaying the contents of the memory.