Module PAC for Hewlett Packard HP 41 Series Calculator | HP 41C HP 41CV HP 41CX
Infrared HP 82104A IR Printer Module, IR interface. HP Part Number / Notes. Math I HP 00041-15009. X Functions HP 82180A. Petroleum HP 00041-15022. Surveying HP 00041-15011. Stat I HP 00041-15014 (Statistics I).