Category:Message systems: Difference between revisions
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Includes postal services and voice mail. | [[Image:Message Systems Morse code in British signal exchange Somme 1916.jpg|thumb|right|A 1916 photo of British officials using Morse Code at The Battle of Somme]] | ||
Includes postal services and voice mail. | |||
== Subcategories == | == Subcategories == | ||
*'''[[:Category:Postal services|Postal services]]''' | *'''[[:Category:Postal services|Postal services]]''' - the services used to transmit physical objects and tangible letters across space | ||
[[Category:Communications|{{PAGENAME}}]] | [[Category:Communications|{{PAGENAME}}]] | ||
Latest revision as of 17:32, 14 April 2014
Includes postal services and voice mail.
Subcategories
- Postal services - the services used to transmit physical objects and tangible letters across space
Pages in category "Message systems"
The following 4 pages are in this category, out of 4 total.
Media in category "Message systems"
The following 2 files are in this category, out of 2 total.
Fig05-SiemensKarolusFacsimileSystem1927 0622.jpg 1,731 × 2,170; 584 KB
Message Systems Morse code in British signal exchange Somme 1916.jpg 766 × 599; 74 KB
