Возврат на главную страницу Возврат на главную страницу Возврат на главную страницу Возврат на главную страницу Возврат на главную страницу
Simple search
Source
 
 
 
Name
Address
Text
Person
Rubric
alphabet
Categories
  • Entries
Persons / Treml L.I. scientist
Mentioned in articles (1)
Telegraph Services

TELEGRAPH. Working in St. Petersburg from 1852, when the first long-distance St. Petersburg - Moscow line was opened (before this, the optical telegraph was used for operational communication)

About the project
Partners
Guest book
Rambler's Top100