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Christopher E. Schafer

Greenfield, IA: #1 of 1 inventorsTop 100%
Iowa: #26 of 549 inventorsTop 5%
Overall (1989): #30,003 of 140,708Top 25%
2 Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4858806 Ticket display and dispenser — 1989-08-22
4821642 Hand operated ticket printer — 1989-04-18

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