USD312461SExpiredUtility
Inter-call device for telephone sets
Est. expiryDec 24, 2008(expired)· nominal 20-yr term from priority
Inventors:Takaharu Ando
74
PatentIndex Score
14
Cited by
8
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an inter-call device for telephone sets, as shown.
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