US PATENT SUBCLASS 340 / 826
.~.~ Plural stage matrix system (e.g., path finding)
Current as of:
June, 1999
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340 /
HD
COMMUNICATIONS: ELECTRICAL
825
DF
SELECTIVE
{23}
825.03
DF
.~ Channel selection {2}
826
.~.~ Plural stage matrix system (e.g., path finding) {1}
827
DF
.~.~.~
> Alternate routing
DEFINITION
Classification: 340/826
Plural stage matrix system (e.g., path finding):
(under subclass 825.03) Subject matter having plural serial switch arrays.
(1) Note. Included herein are switching arrangements for establishing a path between a specified input and output line.
SEE OR SEARCH THIS CLASS, SUBCLASS:
825.8, for a plural matrix stage selective device, other than for channel selection.
SEE OR SEARCH CLASS
379, Telephonic Communications,
272+, for similar subject matter in common control telephone switching system.
