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Ellsworth, Henry Leavitt, 1791-1858 (U.S. Commissioner of Patents), 1838-08-21

 Item — Box: 9

Scope and Contents

Letter: to John Dougherty, Philadelphia, Pa.

ALS. Informs Dougherty that his application for a patent "for an improvement in the mode of transportation upon railroads and canals" has been found to be virtually the same as a patent granted to John Elgar in 1835.

Dates

  • Creation: 1838-08-21

Extent

1 items : 1 p. ; 25 x 20 cm

Box Number or Container

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