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John Andrew Sparshott

Overall (All Time): #2,266,404 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5846004 Impact print head 1998-12-08
4828409 Print head Stephen C Butler, Richard Francis Bowsher 1989-05-09