Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D323678 | Vending machine for newspapers and the like | John B. Olson, John Sinchok | 1992-02-04 |
| D317468 | Vending machine for newspapers or the like | John B. Olson, John Sinchok | 1991-06-11 |
| 4919250 | Newspaper or other article vending device | John B. Olson, John Sinchok | 1990-04-24 |
| D297491 | Telephone enclosure | John B. Olson | 1988-09-06 |
| 4591187 | Book retaining device and method of using same | John B. Olson | 1986-05-27 |
| 4323290 | Telephone enclosure assembly and directory holder apparatus | John S. Hickman, John B. Olson | 1982-04-06 |