"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 items owned by FHWA."
This shows how the SR-30 "state signed guide number" was signed along State Statutory Route 69 in the U.S. state of Utah from 1966 to 1977. It is cropped and modified from Image:SR-30 guide number.jpg.
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{{PD-ineligible}} This shows how the SR-30 "state signed guide number" was signed along State Statutory Route 69 in the U.S. state of Utah from 1966 to 1977. It is cropped and modified from Image:SR-30 guide number.jpg. [[Category:Utah State Route s