Report from the Commissioner of Patents, showing the operations of the Patent Office during the year 1841. PATENT OFFICE, January, 1842.

• Authors : ELLSWORTH, HENRY L. (AUTHOR)

• Source: Journal of the Franklin Institute of the State of Pennsylvania & American Repertory of Mechanical & Physical Science, Civil Engineering, the Arts & Manufactures & of

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To the Navy Commissioners of the United States.

• Authors : BALDWIN; VAIL (AUTHOR)

• Source: Journal of the Franklin Institute of the State of Pennsylvania & American Repertory of Mechanical & Physical Science, Civil Engineering, the Arts & Manufactures & of

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TO THE BOARD OF NAVY COMMISSIONERS.

• Authors : FARON, JOHN (AUTHOR)

• Source: Journal of the Franklin Institute of the State of Pennsylvania & American Repertory of Mechanical & Physical Science, Civil Engineering, the Arts & Manufactures & of

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Correspondence with the United States Board of Navy Commissioners, being replies to their circular asking information relativ to Steam Navigation, applicable to Government purposes.

• Authors : COPELAND, CHARLES W. (AUTHOR)

• Source: Journal of the Franklin Institute of the State of Pennsylvania & American Repertory of Mechanical & Physical Science, Civil Engineering, the Arts & Manufactures & of

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Correspondence with the United States Board of Navy Commissioners, being replies to their circular asking information relative to Steam Navigation, applicable to Government purposes.

• Authors : REDFIELD, WM. C. (AUTHOR)

• Source: Journal of the Franklin Institute of the State of Pennsylvania & American Repertory of Mechanical & Physical Science, Civil Engineering, the Arts & Manufactures & of

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Correspondence with the United States Board of Navy Commissioners, being replies to their circular asking information relative to Steam Navigation, applicable to Government purposes.

• Source: Journal of the Franklin Institute of the State of Pennsylvania & American Repertory of Mechanical & Physical Science, Civil Engineering, the Arts & Manufactures & of

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Remarks on the Injudicious Policy pursued in the Construction and Machinery of many Railroads in the United States.

• Authors : TRAUTWINE, JOHN C. (AUTHOR)

• Source: Journal of the Franklin Institute of the State of Pennsylvania & American Repertory of Mechanical & Physical Science, Civil Engineering, the Arts & Manufactures & of

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Report from the Commissioner of Patents, showing the operations of the Patent Office during the year 1842.

• Authors : ELLSWORTH, H. L. (AUTHOR)

• Source: Journal of the Franklin Institute of the State of Pennsylvania & American Repertory of Mechanical & Physical Science, Civil Engineering, the Arts & Manufactures & of

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Screens for Carding Engines.

• Authors : YOUNG, W. WALLACE (AUTHOR)

• Source: Journal of the Franklin Institute of the State of Pennsylvania & American Repertory of Mechanical & Physical Science, Civil Engineering, the Arts & Manufactures & of

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Report of the Board of Engineers of the U. S. Navy, on Hunter's and Loper's Propellers:WASHINGTON, D. C.. Jan. 31, 1846.

• Source: Journal of the Franklin Institute of the State of Pennsylvania & American Repertory of Mechanical & Physical Science, Civil Engineering, the Arts & Manufactures & of

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