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John O. Schaefer

IBM: 3 patents #21 of 788Top 3%
📍 Lexington, KY: #2 of 67 inventorsTop 3%
🗺 Kentucky: #9 of 312 inventorsTop 3%
Overall (1982): #4,403 of 81,411Top 6%
3
Patents 1982

Issued Patents 1982

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4353657 Ribbon feed mechanism and correction tape feed mechanism for a typewriter 1982-10-12
4350453 Cartridge for correction media or tacky tape with a wrap spring Thomas R. Field, Peter F. Jagodzinski, James F. King 1982-09-21
4347007 Typewriter cartridge and feed mechanism therefor 1982-08-31