earliest electromagnetic instruments
By: Robert A. Chipman.
Series: Contributions from the Museum of History and Technology -- paper 38; United States National Museum bulletin -- 240; Bulletin (United States National Museum) -- no. 240.
Publisher: U.S. G.P.O.
Published: 1964
Place of publication: Washington
Language: eng
Number of pages: 136
Subjects: Magneto-electric machines -- History; Electromagnetism
Notes: Includes bibliographical references.