This image of
simple geometry
is
ineligible for
copyright
and therefore in the
public domain
, because it consists entirely of information that is common property and contains no original authorship.
Any traffic control device design or application provision contained in this Manual shall be considered to be in the
public domain
. Traffic control devices contained in this Manual
shall not be protected by a patent, trademark, or copyright
, except for the Interstate Shield and any other items owned by FHWA.
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