The telechronometer, telephone service measurement in units of time,
Cochran, Lyall Baker.
The telechronometer, telephone service measurement in units of time, by Lyall Baker Cochran. - Seattle, University of Washington, 1941. - 69 p. incl. illus., tables, diagrs. 23 cm. - Washington (State) University. Engineering experiment station. Engineering experiment series. Bulletin no. 104 .
Bibliographical foot-notes.
po 41000004
Telephone--Equipment and supplies.
Chronometers.
Telephone--Rates.
TK6471 / .C6
621.38796
The telechronometer, telephone service measurement in units of time, by Lyall Baker Cochran. - Seattle, University of Washington, 1941. - 69 p. incl. illus., tables, diagrs. 23 cm. - Washington (State) University. Engineering experiment station. Engineering experiment series. Bulletin no. 104 .
Bibliographical foot-notes.
po 41000004
Telephone--Equipment and supplies.
Chronometers.
Telephone--Rates.
TK6471 / .C6
621.38796