File:JFIScrewThread300.png

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JFIScrewThread300.png(300 × 363 pixels, file size: 34 KB, MIME type: image/png)

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Summary

Description Graphic representation of formulas for the pitches of threads of screw bolts
Date
Source Franklin Institute
Author William Sellers
Permission
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public domain
Other versions http://anniversary.asme.org/2005landmarks3.shtml

Licensing

Public domain
Public domain
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, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.

United States
United States
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Date/TimeThumbnailDimensionsUserComment
current17:39, 9 October 2007Thumbnail for version as of 17:39, 9 October 2007300 × 363 (34 KB)wikimediacommons>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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