JJ

Jan Jorna

📍 Gqeberha, ZA: #1 of 7 inventorsTop 15%
Overall (2018): #383,770 of 503,207Top 80%
1
Patents 2018

Issued Patents 2018

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9903615 Solar heat collecting device Hans Helmut Hahn 2018-02-27