USD739373SActiveUtilityPatentIndex 92
Telephone intercom system
Est. expiryOct 5, 2032(~6.3 yrs left)· nominal 20-yr term from priority
Inventors:HILLENMAYER STEFAN
92
PatentIndex Score
20
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38
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1
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The ornamental design for a telephone intercom system, as shown and described.Cited by (0)
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