Report of the judges on new inventions and machines, at the tenth exhibition of the Massachusetts Charitable Mechanic Association, on John Ridgway's vertical revolving battery, awarding a gold medal
By: Board of Judges, J.C. Hoadley ... [et al.].
Contributors: Hoadley, J. C. 1818-1886.; Miscellaneous Pamphlet Collection (Library of Congress)
Publisher: s.n.]
Published: 1865
Place of publication: [Boston?
Language: eng
Subjects: Ridgeway's revolving battery