File:HooverDamJumboRig.jpg
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Summary
| Description |
English: This piece of equipment, named a Jumbo Rig, was designed to speed up the Hoover Dam's tunnel drilling process. Built on the back of a 10-ton truck, 24 to 30 drills could be operated at once. |
| Source | http://www.usbr.gov/lc/hooverdam/images/jumbo.jpg |
| Author | Bureau of Reclamation |
Licensing
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This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | ||
Original upload log
Transferred from en.wikipedia to Commons by NortyNort using CommonsHelper.
The original description page was here. All following user names refer to en.wikipedia.
- 2010-06-20 03:47 NortyNort 770×557× (137028 bytes) {{Information |Description = This piece of equipment, named a Jumbo Rig, was designed to speed up the Hoover Dam's tunnel drilling process. Built on the back of a 10-ton truck, 24 to 30 drills could be operated at once. |Source = http://www.u
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 08:18, 23 March 2011 | | 770 × 557 (134 KB) | File Upload Bot (Magnus Manske) | {{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|This piece of equipment, named a Jumbo Rig, was designed to speed up the Hoover Dam's tunnel drilling p |
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