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Self Locking Support for Ribbon Spool Disclosure Number: IPCOM000068572D
Original Publication Date: 1978-Jan-01
Included in the Prior Art Database: 2005-Feb-20

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Matthaei, H [+details]


Ribbon spools for typewriters and printers must be readily exchangeable by operators. In addition, such spools must be connected to the drive shaft without play and be economical to produce, since they are subject to wear.