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Communications
Class Information
Number:
455/253
Name:
Telecommunications
>
Description:
Sub-classes under this class:
Class Number
Class Name
Patents
455/1
Interference signal transmission (e.g., jamming)
192
455/130
Receiver or analog modulated signal frequency converter
202
455/2.01
Audience survey or program distribution use accounting
103
455/26.1
Use or access blocking (e.g., locking switch)
67
455/3.01
Wireless distribution system
368
455/39
Transmitter and receiver at separate stations
164
455/400
Having single-channel telephone carrier
19
455/403
Radiotelephone system
678
455/7
Carrier wave repeater or relay system (i.e., retransmission of same information)
193
455/73
Transmitter and receiver at same station (e.g., transceiver)
596
455/899
Miscellaneous
37
455/91
Transmitter
274
Patents under this class:
Patent Number
Title Of Patent
Date Issued
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