In 1830, Sewall Short and Noah Bradford submitted a patent application
for the submarine explorer. In their application, they claimed that they
had created a water-tight suit, different from any diving apparatus
known before. Drawing of Submarine Explorer National Archives |
Nantucket Inquirer |
Sewall Short patent Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by hot air or gas
1837-09-06 Application granted
1837-09-06 Publication of US421A
1854-09-06 Anticipated expiration
2019-08-28 Application status is Expired - Lifetime
Nantucket Inquirer Saturday, Aug 10, 1833 Nantucket, MA Vol: XIII Issue: 63 Page: Copy of 3
Nantucket Inquirer Tuesday, Nov 11, 1823 Nantucket, MA Vol: III Issue: 46 Page: 4
Improvement In Stringed Instruments Boston Recorder Thursday, Feb 02, 1854 Boston, MA Vol: XXXIX Issue: 5 Page: 20
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