Author
Early American Industries Association
4
Massachusetts Charitable Mechanic Association
3
Artists' Fund Society of Philadelphia
2
Bliss, George, 1830-1897
2
Carey, William, 1759-1839
2
Cross, Charles R. 1848-1921
2
Ferguson, James, 1710-1776
2
Franklin Institute (Philadelphia, Pa.)
2
Hazen, Edward
2
Howson, Henry, 1823-1885
2
Kneeland, Samuel, 1821-1888
2
National Association of German-American Technologists
2
Nichols, Wm. Ripley 1847-1886
2
Technischer Verein von New York
2
Trowbridge, John, 1843-1923
2
Wells, David A. 1828-1898
2
A mechanic
1
Anderson, Matthew, 1847-1913
1
Austin, James Trecothick, 1784-1870
1
Benz, Leland Arthur
1
Berean Institute (Philadelphia, Pa.)
1
Butterworth, Benjamin, 1839-1898
1
Chase, Annie
1
Clark, Samuel
1
Clow, E.
1
Croker, Temple Henry, 1730?-1790?
1
Cutbush, James, 1788-1823
1
E. Keeler Company
1
Fagan, J.
1
Fairbanks, John
1
Fessenden, Thomas Green, 1771-1837,
1
Fleming, Donald, 1923-
1
Foucaud, Edouard
1
Frost, John, 1800-1859
1
Guyer, Eduard
1
Haswell and Barrington (Philadelphia, Pa.),
1
Hedenburg, Henrietta (Kornhauser), Mrs
1
Hill, Henry Chase
1
Howe, Henry, 1816-1893
1
Hunt, Uriah
1
Icely, John E.
1
Jenkins, Joseph, 1743-1819
1
King & Baird (Philadelphia, Pa.)
1
Kornhauser, Henrietta M.
1
Lawton, Josiah, d. 1843
1
Leland, Charles Godfrey, 1824-1903
1
Mellon Institute of Industrial Research
1
Mellon Institute of Industrial Research (Pittsburgh)
1
Mellon institute in industrial research, Pittsburgh
1
Newcomen Society for the Study of the History of Engineering and Technology
1
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