File:Patent Model for a Window Cleaning Chair.jpg
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Summary
| Description |
English: Invention by Anna Dormitzer. A model of her invention submitted with patent application in 1878. The model consists of a rectangular wooden frame with a glass-paned window opened to allow a wooden platform with hinged back to be placed underneath. |
| Date | |
| Source | Own work |
| Author | FairyShrimp |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:29, 7 March 2022 | | 600 × 665 (56 KB) | FairyShrimp | Uploaded own work with UploadWizard |
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