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US5468793A
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Plastic compositions with antistatic properties
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US5491462A
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Joystick controller
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US5406040A
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Joystick with improved actuator
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US4616833A
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Target shooting game with photoelectric orientation sensing apparatus
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US4647043A
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Pinball machine with fold-down upper cabinet
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US4588187A
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Port expansion adapter for video game port
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US4575086A
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Trackball device
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US4568085A
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Spinning target assembly
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US4615525A
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Spinning target assembly
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US4623787A
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Ball and transducer mounting arrangement for mouse
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US4587510A
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Analog joystick controller
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US4533142A
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Mechanically actuated object-propelling apparatus
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US4470320A
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Joystick assembly with wear member
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US4463237A
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Pushbutton assembly with integral bias means
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US4492830A
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Joystick with single-leaf spring switch
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US4459440A
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Joystick and switch assembly therefor
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US4587419A
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Position control device with dual manual controls
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AU1086083A
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Switch with embossed contacts
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CA1182157A
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Joystick with built-in fire button
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US4558609A
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Joystick controller with interchangeable handles
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