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Class Information
Number: 400/248.3
Name: Typewriting machines > Including interposed inking device (e.g., ribbon) for record-medium > Means auxiliary to ribbon mechanism (e.g., shield, guide, etc.) > Including guide for ribbon > Including electrical, magnetic, or pneumatic guide means
Description: Subject matter wherein the member for conducting or leading the ribbon* is influenced by electrical, magnetic, or pneumatic energy.

Patents under this class:

Patent Number Title Of Patent Date Issued
RE33260 Thermal printer color dye frame identification using red and yellow light sources Jul. 10, 1990
4747715 Vacuum buffered ribbon transport system May. 31, 1988
4710781 Thermal printer color dye frame identification using red and yellow light sources Dec. 1, 1987
4591283 Ribbon correction unit for printers May. 27, 1986
4542998 Character set printing means utilizing rolling pressure contact for printing Sep. 24, 1985

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