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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== ((int:filedesc)) == ((Information |Description= ((en|1=1957 version of an Interstate Highway marker for North Dakota)) |Source=((own)) |Date=1957 |Author=Fredddie |Permission= |other_versions= )) ((PD-MUTCD)) [[Category:1957 North Dak
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