Matrix address decoder for pinball games

Matrix transformation pin ball machine with score multiplier opt

Mechanical ball projection game devices

Metal body detecting apparatus for detecting location of metal b

Metal object detection system for detecting the position of a me

Metal substance detection system for detecting the presence posi

Metallic body detecting apparatus

Method and kit for retrofitting a pinball machine

Method and kit retrofitting a pinball machine

Method for operating mechanical casino bonus game in the...

Method of and apparatus for mounting playfield window

Method of displaying video images projected from a video display

Method of modifying electronics contained in a controller box of

Method of playing a board game

Method of replacing a playfield of a pinball machine

Method of using ball-in-cup game

Miniature golf game

Mounting mechanism for a playfield of a pinball machine

Movable body jumping mechanism for amusement devices

Moving target assembly