
Facit EK  AB Facit, 1936  9digit interlocking,
8digit revolution counter,
13digit result unit Electric variant of the TK.
Onehand operation possible, so that the right hand could always remain free for writing. Wide levers for manual zero position of the counters. Automatic zero position of the puncture after addition and subtraction and electrical deletion of the puncture even with multiplication/division. Semiautomatic division.   None 

