Category:Switching systems
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[[Image:Switching Systems BLW Switch frame from Post Office (London) Railway (Mail Rail) (1) Attribution.jpg|thumb|right|A switch frame installed at The London Mail Rail (Post Office Railway) in 1927 - Image by Mike Peel]] | [[Image:Switching Systems BLW Switch frame from Post Office (London) Railway (Mail Rail) (1) Attribution.jpg|thumb|right|A switch frame installed at The London Mail Rail (Post Office Railway) in 1927 - Image by Mike Peel]] | ||
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| + | A system that allows the interconnection of various communication lines | ||
[[Category:Communication_systems|{{PAGENAME}}]] | [[Category:Communication_systems|{{PAGENAME}}]] | ||
Latest revision as of 20:34, 14 January 2013
_Railway_(Mail_Rail)_(1)_Attribution.jpg)
A system that allows the interconnection of various communication lines
Pages in category "Switching systems"
The following 2 pages are in this category, out of 2 total.
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Media in category "Switching systems"
This category contains only the following file.
