Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4502876 | Cartridge for use in rebreathing apparatus | John P. Jones, Charles E. Michielsen, deceased, by Sophie Michielsen, legal representative | 1985-03-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4502876 | Cartridge for use in rebreathing apparatus | John P. Jones, Charles E. Michielsen, deceased, by Sophie Michielsen, legal representative | 1985-03-05 |