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| All Patents in class 74/594 | |||||
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| Number | Date | Patentee | Title | Type | |
| 14,302 | Feb. 26, 1856 | W. Clark, A. Blaikie | Pitman | reciprocating sawmills | |
| 145,752 | Dec. 23, 1873 | T.T. Prosser | Improvement in connecting-rods | steam engines | |
| 190,441 | May 08, 1877 | W.J. Liddell | Improvement in steam-engines | steam engines | |
| 415,438 | Nov. 19, 1889 | E.M. Birdsall | Steam-engine | steam engines | |
| 425,119 | Apr. 08, 1890 | R.W. Aitken | Connecting Rod | traction engine connecting rods | |
| 1,480,684 | Jan. 15, 1924 | W.S. Hudson | Spring Link | vacuum and pressure gauges | |