Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4248058 | Differential piston type reversing valve construction, system utilizing the same and method of making | James T. Candor | 1981-02-03 |
| 4245670 | Reversing valve construction and piston head assembly therefor and methods of making the same | Robert A. Van Fossen | 1981-01-20 |
| 4245142 | Control unit and electrical switch construction therefor and methods of making such a control unit and electrical switch construction | William N. Smith | 1981-01-13 |
| 4241486 | Methods of making a reversing valve construction and a valve member therefor | — | 1980-12-30 |
| 4240469 | Reversing valve construction and parts therefor and methods of making the same | — | 1980-12-23 |
| 4237933 | Reversing valve construction and parts therefor and methods of making the same | — | 1980-12-09 |
| 4213483 | Reversing valve construction and parts therefor and methods of making the same | — | 1980-07-22 |
| 4212324 | Reversing valve construction and method of making the same | — | 1980-07-15 |
| 4188975 | Reversing valve construction and valve member therefor and methods of making the same | — | 1980-02-19 |