Image:JFIScrewThread300.png
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[edit] Summary
| Description |
Graphic representation of formulas for the pitches of threads of screw bolts |
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| Source |
Franklin Institute |
| Date |
1864 |
| Author |
William Sellers |
| Permission (Reusing this image) |
public domain |
| Other versions | http://anniversary.asme.org/2005landmarks3.shtml |
[edit] Licensing
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This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1923. See this page for further explanation.
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This image might not be in the public domain outside of the United States (this especially applies in Canada, China (not Hong Kong, Macao, or Taiwan Area), Germany, Mexico, and Switzerland). The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details. |
File history
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 17:39, 9 October 2007 | 300×363 (34 KB) | HokieRNB | ({{Information |Description=Graphic representation of formulas for the pitches of threads of screw bolts |Source=Franklin Institute |Date=1864 |Author=William Sellers |Permission=public domain |other_versions=http://anniversary.asme.org/2005landmarks3.shtm) |
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