File:DentalResearch 010.jpg

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Summary[edit]

Description Detail of NBS dental comparator showing the variable parallelogram, or pantograph. The guide pointer (left) is permanently positioned while the indicator pointer is capable of vertical movement. The dial indicator (right) indicates the difference in height of the surface traced by the indicator in relation to that traced by the guide. The larger dial indicator registers the change in shape of the parallelogram. The lock plate (right) holds the parallelogram in a definite forward-backward position while measurements are being made.
Source National Institute of Standards and Technology
Author National Institute of Standards and Technology
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Public domain
This image is in the public domain in the United States because it is a work of the United States Federal Government, specifically an employee of the National Institute of Standards and Technology, under the terms of Title 17, Chapter 1, Section 105 of the US Code.

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Licensing[edit]

Public domain
This image is in the public domain in the United States because it is a work of the United States Federal Government, specifically an employee of the National Institute of Standards and Technology, under the terms of Title 17, Chapter 1, Section 105 of the US Code.

English  日本語  македонски  Nederlands  +/−

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Date/TimeThumbnailDimensionsUserComment
current19:28, 6 March 2014Thumbnail for version as of 19:28, 6 March 20145,167 × 4,764 (1.6 MB)NISTResearchLibrary (talk | contribs)

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