The "dupliphone" attachment
Series: Nineteenth Century Collections Online: Science, Technology, and Medicine, Part I; Nineteenth Century Collections Online: Science, Technology, and Medicine, Part I
Publisher: The Company
Published: 1904
Place of publication: Boston
Language: eng
Format: [electronic resource]
Number of pages: 67
Subjects: Telephone; Equipment and supplies; History
Notes: Includes index.

"Once used, a telephone necessity."

Advertising: [15] p., 2nd count.

Reproduction of the original from the Huntington Library.