Abstract: A nut or bolt which requires a special tool for its removal. The engaging elements of the nut or bolt and the manipulating tool consisting of matching spline ways and pins which function as splines, the matching elements being arranged in random pattern.
Abstract: A nut or bolt which requires a special tool for its removal. The engaging element of the nut or bolt and the manipulating tool consisting of matching dowel holes, and pins which also function as keys, the pins and dowel holes being arranged in a random pattern.
Abstract: An auxiliary mechanism whereby the water release from a toilet tank can be controlled and limited at each operation. A second handle is provided, the use of which permits only a restricted amount of lift of the flush valve.
Abstract: A board game in which a playing piece, representing the ball, is moved from zone to zone in an attempt to score points as in the actual game of basketball. A dial control is provided for each player which may or may not stop play upon the advancement of the ball from one zone to another, the next step in the resumption of play being decided by the rolling of dice.
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