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Class Information
Number: 273/DIG.31
Name: Amusement devices: games > Undulated surface

Patents under this class:

Patent Number Title Of Patent Date Issued
7594777 Wavy tactile walk path Sep. 29, 2009
5445381 All season putting system Aug. 29, 1995
5094569 Ground surface contour modifying apparatus and method Mar. 10, 1992
5074557 Table top football game apparatus Dec. 24, 1991
5069455 Golf putting trainer Dec. 3, 1991
5028052 Golf mat Jul. 2, 1991
5007644 Golf putting practice target Apr. 16, 1991
5002280 Adjustable and folding putting green Mar. 26, 1991
4978127 Selectively contourable putting green Dec. 18, 1990
4898383 Amusement apparatus Feb. 6, 1990
4743027 Golf practice putting device May. 10, 1988
4434983 Golfer's stance mat Mar. 6, 1984
4389048 Apparatus for playing a spectator-controlled game Jun. 21, 1983
4348026 Disc game apparatus Sep. 7, 1982
4198050 Game device with release ramp and scoring recesses Apr. 15, 1980
4053158 Skill-type board game Oct. 11, 1977

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