Patent US 3694291A
| Patent number | US 3694291A (click link for details and documents via Google Patents) |
|---|---|
| Title | Apparatus for making light pipes |
| Inventors | John H Mcallister |
| Company | Tektronix Inc |
| Filing date | 1970-04-02 |
| Grant date | 1972-09-26 |
| Patent number | US 3694291A (click link for details and documents via Google Patents) |
|---|---|
| Title | Apparatus for making light pipes |
| Inventors | John H Mcallister |
| Company | Tektronix Inc |
| Filing date | 1970-04-02 |
| Grant date | 1972-09-26 |