C47 Calculator How to find out

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=nG50Nvaksdc

First-time-users may have difficulties clarifying what certain functions, keys, menus etc. do and look for a manual, e.g. Here I give some advice on how to s...

C47 Calculator, C47, Swissmicros, Swissmicros DM42, DM42
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