Vtg 1981 Hewlett Packard HP 3000 Computer Systems MPE Software Pocket Guide

HP-41CX Owner’s Manual Vol 2 1983 Hewlett Packard Calculator Guide

1981 Hewlett Packard HP 3000 Computer Systems MPE Software Pocket Guide

Vtg 1990's ORBIT Software MPE/IX and Backup+/iX for HP3000 Pocket Guide

Hewlett Packard Advanced Programming ROM Pocket Guide HP-86/87 00087-90136 1983

Hewlett Packard HP-12C Owner's Handbook And Problem-Solving Guide 4/86

Vintage 1972 Hewlett Packard HP 2100 Computer Microprogramming Guide 5951-3028

Hewlett-Packard HP-12C Calculator Owner’s Handbook And Problem-Solving Guide