HP 42S RPN Scientific Calculator

Vintage RPN Collectible

Hewlett Packard HP-42S RPN Scientific Calculator

HP 42S Calculator RPN Scientific 1988 by nguyen ngoc khanh

HP 42S RPN Scientific Calculator for Sale in San Jose, CA - OfferUp

Hewlett Packard HP 42S Scientific Calculator ***Near Mint***

Ready to go.

Hewlett Packard HP-42S RPN Scientific Calculator

About DM32

HP-42S Scientific Calculator by Duan Xiao

Fully functional is this HP 42S RPN Scientific Calculator. The calculator passes self and key-board test successfully. S/N: 3005S06449, Calculator is

HP-42S RPN Scientific Calculator with Case and Two Manuals in PDF Format

HP-42S Scientific Calculator

HP 42S Programmable Scientific Calculator Display Versions

HP 42S Programmable Scientific Calculator Display Versions

Free42 : An HP-42S Calculator Simulator

HP-42S - Wikipedia