OB

Oswald Bell

Overall (All Time): #2,219,482 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6471915 Method for disacidifying paper products with printings or inscriptions — 2002-10-29
5827578 Process and device for deacidifying printed material and paper products of all kinds — 1998-10-27