Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4455269 | Device and method for forming in situ horizontal concrete slabs | Alfred B. Spamer | 1984-06-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4455269 | Device and method for forming in situ horizontal concrete slabs | Alfred B. Spamer | 1984-06-19 |