File:Patent drawings for US1071500A.png
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Summary
[edit]
| Description |
Patent drawings for loose-leaf binder used by Nelson's Encyclopedia |
|---|---|
| Source |
https://docs.google.com/viewer?url=patentimages.storage.googleapis.com/pdfs/US1071500.pdf |
| Date |
September 1907 |
| Author |
Charles E. Baldauf |
| Permission (Reusing this file) |
See below.
|
Licensing
[edit]
 | The text and illustrations of US patents are in the public domain in the United States unless the patent text contains a specific notice that portions are copyrighted.[1][2][3]
The original patent contains no such notice, so its contents are in the public domain in the United States. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:04, 21 November 2015 | | 569 × 620 (163 KB) | Macrakis (talk | contribs) | Uploading a public-domain item using File Upload Wizard |
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