G - Physics – 09 – F
Patent
G - Physics
09
F
G09F 15/00 (2006.01) G09F 7/18 (2006.01)
Patent
CA 2734057
A billboard system has a framework supporting at least one panel. A lower rail is fixed to the framework and has at least one downwardly opening channel. An upper rail is movable with respect to the framework. The upper rail has at least one upwardly opening channel. A billboard copy at least partially covers the at least one panel. Rods may be selectively located in the copy. Steps for tensioning the copy are also disclosed.
Heddles Willard P.
Klaiss Zeile
Troiano Thomas P.
Ridout & Maybee Llp
Tiffin Metal Products Co.
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