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US3391937A
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Cantilever type ball bumper
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US3404888A
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Ball gating and reprojecting means
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US3372783A
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Coin chute structure
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US3390834A
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Reversible counter
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US3340486A
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Gang trip relay
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US3371762A
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Coin chute wire lockout and control
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US3340488A
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Separable gang relay coil and stator assembly
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US3339425A
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Self-varying governor
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US3279574A
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Coin chute guard means
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FR1420680A
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Selective coin counter
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US3303709A
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Step-multiplying ratchet wheel drive
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US3273571A
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Pre-selective coin counter
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US3242746A
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Latch means for step-up mechanism
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US3298691A
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Reprojecting ball bumper
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US3180645A
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Linear action ball bumper
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US3180646A
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Rocking action ball bumper
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US3196625A
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Combination ice chip maker-dispenser and method
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US3063719A
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Velocity score control
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US3063715A
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Simulated bowling pin with angular reaction
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US3064098A
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Electrical switch mechanism
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