| HP-67 soft. |  Parallel -- Counter Flow Heat Exchangers | 197? | Hewlett-Packard |
| HP-67 soft. | Parallel and Counter Flow Heat Exchangers | 197? | Hewlett-Packard |
| HP-67 soft. | Parameter Conversion | 197? | Hewlett-Packard |
| HP 9845 Series pack. | Parametric Curve Fitting Using Cubic Splines Model 21.9027 | 198? | Hewlett-Packard |
| HP-67 soft. | Paraxial Ray Tracing #1 - Tracing | 197? | Hewlett-Packard |
| HP-67 soft. | Paraxial Ray Tracing #2 - Storing | 197? | Hewlett-Packard |
| HP-83/85 disk | Paraxial Ray Tracing Model 100-0036 | 198? | Hewlett-Packard |
| HP 2100 Series punched tape | PARKT ACCIDENTS BY TIME OF DAY | 197? | Hewlett-Packard |
| HP-150 soft. | PASCAL | 1984 | Hewlett-Packard |
| HP 9000/300 Series disk | Pascal Ver.3.25 | 1991 | Hewlett-Packard |
| HP-83/85 disk | Passive Filter Design Model 100-0009 | 198? | Hewlett-Packard |
| HP-67 soft. | Passive High and Low Pass Composite Filters | 197? | Hewlett-Packard |
| HP-83/85 disk | Passive Solar Simulator Model 100-0004 | 198? | Hewlett-Packard |
| HP 9845 Series pack. | Payrol l for Small Businesses 9845A Model 54.9501 | 198? | Hewlett-Packard |
| HP-41C soft. | Payroll | 197? | Hewlett-Packard |
| HP 9845 Series pack. | Payroll for Small Businesses 9845B Model 54.9502 | 198? | Hewlett-Packard |
| HP 9845 Series cass. | Payroll Model 09845-10850 | 197? | Hewlett-Packard |
| HP 9845 Series pack. | PCMdmo - Demonstration Program for Pulse Modulation Model 11.9512 | 1981 | Hewlett-Packard |
| HP-83/85 disk | PCOPY Model 900-0042 | 198? | Hewlett-Packard |
| HP-83/85 disk | Percentage Correctly Classified Model 300-0038 | 198? | Hewlett-Packard |
| HP 9835 Series pack. | Performance Histogram (9835/9845) Model 63.9514 | 198? | Hewlett-Packard |
| HP-150 soft. | Personal Card File | 198? | Hewlett-Packard |
| HP-83/85 disk | Personal Data Management Package Model 000-0064 | 198? | Hewlett-Packard |
| HP-83/85 disk | Personal Mailing List Model 800-0030 | 198? | Hewlett-Packard |
| HP-41C soft. | pH of Weak Acid-Base Solutions | 197? | Hewlett-Packard |
| HP-67 soft. | Photo/Image Display Parameters | 197? | Hewlett-Packard |
| HP-83/85 disk | Photoelectric Effect Model 500-0006 | 198? | Hewlett-Packard |
| HP-83/85 disk | Photosynthesis Experiment Model 400-0001 | 198? | Hewlett-Packard |
| HP-67 soft. | Physical Properties of Seawater | 197? | Hewlett-Packard |
| HP 9845 Series pack. | Pie Graphs Model 64.9515 | 198? | Hewlett-Packard |
| HP 9845 Series pack. | PIPEWT (Caiculate the Supports of a Piping System) Model 14.9502 | 198? | Hewlett-Packard |
| HP-41C soft. | Planar Phased Array Radar Beam Positions | 197? | Hewlett-Packard |
| HP 9845 Series pack. | Plane Similarity Transformation with Overdetermination Model 21.9020 | 198? | Hewlett-Packard |
| HP-83/85 disk | Plane Truss Analysis Model 100-0023 | 198? | Hewlett-Packard |
| HP-83/85 disk | Planetary Positions Model 500-0025 | 198? | Hewlett-Packard |
| HP 9845 Series pack. | Planimeter Model 62.9510 | 198? | Hewlett-Packard |
| HP-67 soft. | Plate Tectonic Velocities | 197? | Hewlett-Packard |
| HP-41C soft. | Playback Programmable Timer | 197? | Hewlett-Packard |
| HP 2100 Series punched tape | PLOT 7 8K ABS | 197? | Hewlett-Packard |
| HP 9845 Series pack. | Plot Circuit Diagram Model 11.9004 | 198? | Hewlett-Packard |
