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.
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 26,473
- 39,909
- 55,608
- 61,825
- 64,580
- 90,950
- 97,418
- 113,392
- 116,585
- 125,877
- 126,079
- 129,264
- 134,685
- 137,985
- 143,479
- 145,665
- 153,217
- 159,753
- 199,587
- 201,978
- 212,411
- 219,011
- 228,238
- 237,485
- 243,818
- 247,497
- 249,335
- 410,383
- 425,520
- 433,095
- 454,167
- 481,294
- 516,767
- 594,177
- 610,063
- 653,455
- 708,773
- 721,253
- 780,831
- 803,685
- 820,972
- 821,393
- 848,479
- 849,136
- 866,869
- 880,532
- 903,073
- 956,957
- 991,315
- 996,343
- 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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