BD

Bohdan Drwiega

📍 Roquebrune-Cap-Martin, FR: #5 of 12 inventorsTop 45%
Overall (All Time): #2,341,511 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4650303 Projection apparatus for photographic transparencies and a device apparatus for storing transparencies to be projected with the apparatus — 1987-03-17
4456350 Arrangement for the viewing projection of framed slides — 1984-06-26