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Communications
Class Information
Number:
379/226
Name:
Telephonic communications
>
Plural exchange network or interconnection
> Having a manual exchange
Description:
Subject matter wherein at least one of the plural exchanges has manual call connection.
Sub-classes under this class:
Class Number
Class Name
Patents
379/227
With an automatic exchange
8
Patents under this class:
Patent Number
Title Of Patent
Date Issued
7596112
Method and apparatus for rate compatible dirty paper coding
Sep. 29, 2009
6496836
Symbol-based memory language system and method
Dec. 17, 2002
6067305
Computer telephone integration exchange system
May. 23, 2000
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