Costly errors; a discussion of methods and apparatus employed in timing toll messages in telephone exchanges.

Author
Abbot, Henry [Browse]
Format
Book
Language
English
Published/​Created
New York [Francis & Loutrel co. print.], 1898.
Description
pp. 33+. Diagrams and other illustrations.

Details

OCLC
80172425
RCP
H - S
Statement on language in description
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Supplementary Information