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Additional Pictures 

 

The Hewlett-Packard HP 82001A Battery Pack used with the
HP-35, HP-45, HP-55, HP-65, HP-70, and HP-80. 


horizontal rule

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

© Joerg Woerner, August 26, 2023. No reprints without written permission.