DE2820044A1
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THROW RESULTS EVALUATION DEVICE AT A BOWLING LIGHT
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DE2751011A1
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Electrically operated score board for bowling alley - has logic circuit to sum scores from switches actuated by fallen skittles
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CH619619A5
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Ball lift for a skittle alley
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CH609874A5
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Display device for a skittle-alley
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DE2629628A1
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Bowling alley with automatic ball return - has vertical elevator with lifting bars for raising ball to return chute
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ATA409976A
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Taper adjustment
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CH591264A5
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Skittle alley noise prevention - using acoustic waterproof rubber bend between playing surface and foundation and expansion grooves round play surface
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