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2 results. Displaying results 1 - 2.
| Name/Title | Maker and role | Production date | Object number | ||
|---|---|---|---|---|---|
|
Patent Model - Improved Valve-Gear for Steam-Engines
|
Julia Ross, Patentee
James Ross (d.Pre 1861), Patentee |
Sep 24 1861
|
61.47.531
|
|
|
Patent Model - Improvement in Machine-Guns
|
Marshall Wood (b.1828, d.1899), Patentee
Thomas Matthews, Assignee |
Jul 30 1872
|
61.47.460
|
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