Published Resources Details Letters Patent

Ketcham, I. A.
Improved apparatus for operating submarine batteries
United states Patent Office, 14 October 1862

Specification forming part of Letters Patent No. 36,654.

Accession No.1281


"The subject of my invention is an apparatus by means of which an explosive shell or battery may be projected from the side, bow or stern of a vessel in any direction or position under the surface of the water, and exploded while it is held, or after it has been left beneath an enemy's vessel or other object which it is desired to destroy."

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