USD311391SExpiredUtility

Data recording cartridge for language learning machine

87
Assignee: TOSHIBA KKPriority: Sep 8, 1987Filed: Mar 7, 1988Granted: Oct 16, 1990
Est. expirySep 8, 2007(expired)· nominal 20-yr term from priority
Inventors:Akito UeshinHidekiyo KushimaShinichi Ishigame
87
PatentIndex Score
30
Cited by
8
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a data recording cartridge for language learning machine, as shown and described.

Join the waitlist — get patent alerts

Track USD311391S — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.