A game intended to be played by two players, one at each end of a game board. The game board comprises a flat rectangular playing surface having retaining walls extending upwardly from the sides thereof and a scoring groove in the playing surface parallel to and adjacent each end of the board. The playing...http://www.google.de/patents/US4310159?utm_source=gb-gplus-sharePatent US4310159 - Blowing game including rolling cylinder and cooperating scoring zone
