Census of electrical industries, 1917
Subtitle: telegraphs and municipal electric fire-alarm and police-patrol signaling systems
By: Department of Commerce, Bureau of the Census
Publisher: Govt. Print. Off.
Published: 1919
Place of publication: Washington
Language: eng
Number of pages: 61
Subjects: Telegraph; Statistics; Fire alarms; Police; Census
Other titles: Telegraphs and municipal electric fire-alarm and police-patrol signaling systems
Work titles: Census of electrical industries (1917)