HS

Helena Maria B. Alves dos Santos

📍 Lisbon, PT: #2 of 6 inventorsTop 35%
Overall (1982): #60,289 of 81,411Top 75%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4315695 Inertia pen with slidable sleeve Antonio M. Alves dos Santos 1982-02-16