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Communications
Class Information
Number:
178/69B
Name:
Telegraphy
>
Systems
>
Line-clearing and circuit maintenance
> Interference neutralizing
Description:
Patents under this class:
Patent Number
Title Of Patent
Date Issued
7003029
Method and device for equalizing and decoding a data signal
Feb. 21, 2006
5495173
Method and apparatus for characterizing a differential circuit
Feb. 27, 1996
4697047
Trunk coupling unit
Sep. 29, 1987
4066229
Device for preventing traction power harmonic interference on high frequency track circuits
Jan. 3, 1978
3932713
Induction cancellation circuit
Jan. 13, 1976
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