Vintage 1979-1985 Hewlett Packard HP-41C MATH PAC Module w/Manual 2 Overlay

Math pac manual for Hewlett Packard HP 41CV calculator module

Hewlett Packard HP-41 Math I PAC/Module HP 5061-5261 for HP-41C/41CV/41CX

Vintage HP-41C Application PAC Circuit Analysis PAC Box only No modules

Hewlett Packard HP Math I Pac Module HP 5061-5261 for 41C/41CV/41CX Calculators

STOP WATCH OVERLAY Hewlett Packard Time Module Pac HP 82182A for 41C/41CV Calc

Hewlett Packard HP 41C 41CV 41CX Calculator Repair service

Hewlett-Packard HP 41C/41CV/CX Stress Pac Module w/Manual & Overlay