This is a retouched picture, which means that it has been digitally altered from its original version. The original can be viewed here: Thread Tr.svg: . Modifications made by Wizard191.

I, the copyright holder of this work, hereby publish it under the following license:

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue

	This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
	You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
	This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue

This image is a derivative work of the following images:

• Image:Thread_Tr.svg licensed with GFDL, GFDL/en
  • 2008-12-21T03:36:17Z Wizard191 289x97 (18942 Bytes) Minor cleanup
  • 2008-07-29T19:34:14Z Zielu20 289x97 (18962 Bytes) {{Information |Description={{pl|1=Zarys gwintu trapezowego symetrycznego wg normy PN-79/M-02017}} |Source=Praca własna osoby przesyłającej (own work by uploader) |Author=[[User:Zielu20|Zielu20]] |Date=29.07.2008 |Permissio

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