{{ /fahy_permeameter_drawing_patent.png?500 }} 

A drawing of the [[/Fahy permeameter]] from the original patent.

Patent US1196223: http://www.google.com/patents/US1196223

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You can use this image freely (there is no need to ask for explicit permission), but you must give the following credits:
\\ \\ 
United States Patent and Trademark Office, Public domain

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//Copyright law (17 U.S.C. § 105) states that all materials created by the United States government are in the public domain. However, there are restrictions on use.

Anyone incorporating a work of the U.S. Government into a copyrighted work should be aware of 17 U.S.C. § 403. This section requires a copyright notice to contain a statement identifying what portions of the work consist of a work of the U.S.Government. Failure to do so could result in loss of copyright protection for the entire work.//
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{{tag> Permeameters Fahy_permeameter Files}}