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Class D14/140.1 - Signal processor type


Subclass of Class D14 - Recording, communication, or information retrieval equipment
Definition: Design for equipment for central processing of telephone
No. of patents: 5
Last issue date: 09/20/2011


NumberTitleIssue Date
D645443Repeater for communication
09/20/2011
D551650Repeater
09/25/2007
D529892Hybrid voice communication system
10/10/2006
D495311Switching apparatus for telephone set and data transmission
08/31/2004
D494952Switching apparatus for telephone set and data transmission
08/24/2004
 
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