Encyclopedia Dubuque
"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
Marshall Cohen—researcher and producer, CNN
Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.
File:Tschirgi Patent.jpg
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M. Tschirgi. Patent No. 47,347. April 18, 1865.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 02:13, 18 November 2008 | | 267 × 423 (32 KB) | Mmay (talk | contribs) | M. Tschirgi. Patent No. 47,347. April 18, 1865. |
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