Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4462714 | Method and apparatus for setting a cement plug in the wide-mouth shaft of an earth cavern | Charles F. Smith, Gustavo A. Correa, Ralph N. Holley | 1984-07-31 |
GP
George R. Parks
Overall (All Time): #4,038,513 of 4,157,543Top 100%
1
Patents All Time