HD

Herman R. Drennan

📍 Castro Valley, CA: #480 of 760 inventorsTop 65%
🗺 California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #4,108,813 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4195047 Method for repairing broken denture Norman A. Hana 1980-03-25