Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4598938 | Coupling device for making a permanent pipe connection | Jurg R. Pfister, by Lisa Pfister, administrator | 1986-07-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4598938 | Coupling device for making a permanent pipe connection | Jurg R. Pfister, by Lisa Pfister, administrator | 1986-07-08 |