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Communications
Class Information
Number:
340/24
Name:
Communications: electrical
>
Description:
Sub-classes under this class:
Class Number
Class Name
Patents
340/
Vehicle position indication (340/988)
0
340/
Land vehicle alarm or indicator (340/425.5)
0
340/
Condition responsive indicating system (340/500)
0
340/
Condition responsive indicating system (340/500)
0
340/
Condition responsive indicating system (340/500)
0
340/
Condition responsive indicating system (340/500)
0
340/
Condition responsive indicating system (340/500)
0
340/
Condition responsive indicating system (340/500)
0
340/
Condition responsive indicating system (340/500)
0
340/
Selective (340/825)
0
340/
Selective (340/825)
0
340/
Systems (340/286.01)
0
340/146.2
Digital comparator systems
410
340/286.01
Systems
118
340/310.11
Remote control over power line
501
340/384.1
Audible indication
235
340/407.1
Tactual indication
364
340/425.1
Repeater in unspecified type communications line or channel (e.g., relay station)
36
340/425.5
Land vehicle alarms or indicators
981
340/500
Condition responsive indicating system
330
340/815.4
Visual indication
430
340/825
Selective
204
340/850
Underwater
86
340/853.1
Wellbore telemetering or control (e.g., subsurface tool guidance, data transfer, etc.)
149
340/870.01
Continuously variable indicating (e.g., telemetering)
215
340/901
External condition vehicle-mounted indicator or alarm
460
340/906
Override of traffic control indicator by command transmitter
123
340/907
Traffic control indicator
365
340/932.2
Vehicle parking indicators
399
340/933
Vehicle detectors
660
340/944
Pedestrian guidance
84
340/945
Aircraft alarm or indicating systems
556
340/984
Watercraft alarm or indicating systems
164
340/988
Vehicle position indication
1,290
340/999
Miscellaneous
38
Patents under this class:
Patent Number
Title Of Patent
Date Issued
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