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HP-41 Card Reader Repair by Peter M Geiser
HP-41 Card Reader - vintagecalc
HP-41 Card Reader Repair by Peter M Geiser
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Repairing the hp 82104A Card Reader
HP Forums - Got a HP-41CV Half Nut as a early Christmas gift!
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HP Card Reader Gummy Wheel Repair parts HP65 HP67 HP97 HP82104A HP41C 41CV 41CX | eBay
HP-41 Card Reader Repair by Peter M Geiser
Repair kit for HP-41c battery bay and expansion ports - TheCalculatorStore
Repairing the hp 82104A Card Reader
