File:US1468973.png
Size of this preview: 374 × 600 pixels. Other resolutions: 149 × 240 pixels | 299 × 480 pixels | 479 × 768 pixels | 1,100 × 1,764 pixels.
Original file (1,100 × 1,764 pixels, file size: 520 KB, MIME type: image/png)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
English: Patent US1468973 of The Porter Garden Telescope (reflecting telescope version) by Russell W.Porter
Español: Patente US1468973 de The Porter Garden Telescope (version telescopio reflector) por Russell W.Porter |
| Date | |
| Source | http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=/netahtml/PTO/search-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN/1468973 |
| Author | Russell W. Porter |
Licensing
|
The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See 37 CFR 1.71(d), 37 CFR 1.84(s)
The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}. |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:30, 4 April 2018 | | 1,100 × 1,764 (520 KB) | Majozd | User created page with UploadWizard |
File usage
The following page uses this file:
Global file usage
The following other wikis use this file:
- Usage on es.wikipedia.org
- Usage on www.wikidata.org
