ES117685A1
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Improvements in the mechanisms of force transmission.
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ES116383A1
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Improvements in the mechanisms of force transmission.
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ES114062A1
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Improvements in the mechanisms of force transmission.
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ES108541A1
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Improvements in the mechanisms of force transmission.
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ES101761A1
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Improvements in the manufacture of pills, chocolates and other confections, made of chocolate or in which this substance predominates.
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CA344847A
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Power transmission mechanism
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CA323629A
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Power transmission mechanism
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CA343320A
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Transmission mechanism
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CA249807A
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Safety razor
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CA370455A
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Hydraulic power transmitter
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CA316271A
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Power transmission mechanism
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CA314974A
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Power transmission mechanism
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CA370456A
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Hydraulic power transmitter
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CA298371A
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Power transmission mechanism
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CA257376A
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Device for sharpening safety razor blades
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CA227588A
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Device for sharpening safety razor blades
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CA265240A
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Carbon distillation
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