USD320224SExpiredUtility
Ink ribbon cassette for electronic typewriter
Est. expirySep 9, 2007(expired)· nominal 20-yr term from priority
51
PatentIndex Score
6
Cited by
14
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an ink ribbon cassette for electronic typewriter, as shown and described.
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