Duplex speakerphone
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Description
Claims
The ornamental design for a duplex speakerphone, as shown and described.
Referenced Cited
U.S. Patent Documents
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Patent History
Patent number: D728507
Type: Grant
Filed: Oct 21, 2013
Date of Patent: May 5, 2015
Assignee: Sennheiser Communications A/S (Solrod Strand)
Inventor: Michael Brandis (Nuremberg)
Primary Examiner: Susan Bennett Hattan
Assistant Examiner: Marie Fast Horse
Application Number: 29/470,420
Type: Grant
Filed: Oct 21, 2013
Date of Patent: May 5, 2015
Assignee: Sennheiser Communications A/S (Solrod Strand)
Inventor: Michael Brandis (Nuremberg)
Primary Examiner: Susan Bennett Hattan
Assistant Examiner: Marie Fast Horse
Application Number: 29/470,420
Classifications
Current U.S. Class:
Freestanding (5) (D14/149)