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Additional Pictures 

 

This Magcobar OPTIMUM MUD HYDRAULICS calculator with the date code ATA2180 was
manufactured in Abilene, TX in May 1980.

The base calculator of this Magcobar OPTIMUM MUD HYDRAULICS calculator is a
standard TI-59 manufactured in 1980.


horizontal rule

If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, October 21, 2008. No reprints without written permission.