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Patent
- X1 - "the making of Pot ash and Pearl ash by a new Apparatus and Process" , Samuel Hopkins, issued July 31, 1790.
- 1 - "Locomotive steam-engine for rail and other roads", John Ruggles, issued July 13, 1836.
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- 134,685
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- 903,073
- 956,957
- 991,315
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- 999,388
- 1,004,581
- 1,117,746
- 1,232,282
- 1682572
- 1,549,622
- 1,587,716
- 1,600,494
- 6,368,227
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