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| All Patents in class 33/23.05 | |||||
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| Number | Date | Patentee | Title | Type | |
| 364,043 | May 31, 1887 | C.S. Riché | Pantograph | pantographs | |
| 420,484 | Feb. 04, 1890 | R.W. Whitney | Instrument for Copying Drawings | draftsman | |