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US Patent: 73,957
Improved Gas Heater
Patentee:
Samuel Darling - Bangor, ME

USPTO Classifications:
239/522

Tool Categories:
trade specific : blacksmith

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
John E. Hall
Albert W. Paine
William O. McIntire
John Clyde Sullivan

Patent Dates:
Granted: Feb. 04, 1868

Patent Pictures:
USPTO pdf tiff
Google Patents
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Description:
Crosby, Halsted & Gould - patent attorneys

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