Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4356811 | Solar collector | Herman Bloem | 1982-11-02 |
JG
Johan C. de Grijs
Overall (1982): #53,463 of 81,411Top 70%
1
Patents 1982