File:Patent drawings for US1071500A.png
Size of this preview: 550 × 599 pixels. Other resolutions: 220 × 240 pixels | 569 × 620 pixels.
Original file (569 × 620 pixels, file size: 163 KB, MIME type: image/png)
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. |
File history
Click on a date/time to view the file as it appeared at that time.
| 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 |
You cannot overwrite this file.
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):
