| 631 | Pendant Control Stations | Company Product |
| 632 | Pendant Controls | Company Product |
| 633 | Pendant Light | Company Product |
| 634 | Pendant Lights | Company Product |
| 635 | Pendants | Company Product |
| 636 | Pendent Sprinklers | Company Product |
| 637 | Pendulum Concrete Vibrators | Company Product |
| 638 | Penetrating Lubricants | Company Product |
| 639 | Penetrating Sealers | Company Product |
| 640 | Penetrometers | Company Product |
| 641 | Penicillin | Company Product |
| 642 | Pens | Company Product |
| 643 | Penstocks | Company Product |
| 644 | Pentachloronitrobenzene | Company Product |
| 645 | Pentachlorophenol | Company Product |
| 646 | Pentaerythritol | Company Product |
| 647 | Pentecostal Churches | Company Product |
| 648 | Pentobarbtione | Company Product |
| 649 | Peppermint Oils | Company Product |
| 650 | Perchloric Acid Fume Hood | Company Product |
| 651 | Percussion Drills | Company Product |
| 652 | Percussion Hammers | Company Product |
| 653 | Perfect Bound Books | Company Product |
| 654 | Perforated | Company Product |
| 655 | Perforated Belting | Company Product |
| 656 | Perforated Metals | Company Product |
| 657 | Perforated Pipe | Company Product |
| 658 | Perforated Sheets | Company Product |
| 659 | Perforated Stainless Steel Sheet | Company Product |
| 660 | Perforated Steel Sheet | Company Product |