Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4225171 | Electromagnet tool for retrieving magnetic objects from an earth cavern | Robert A. Hay, II | 1980-09-30 |
JD
John A. DeBliek
Overall (All Time): #4,120,667 of 4,157,543Top 100%
1
Patents All Time