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GB1141802A
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Improvements in or relating to electrical signal handling equipment such as master and slave electric clock systems
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GB1141801A
|
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Electro-mechanical indicators
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US2642685A
|
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Monogrammic indicator
|
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US2566610A
|
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Aggregating and displaying device, particularly applicable to totalizators
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US2596550A
|
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Cam actuated rotary indicator
|
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GB625865A
|
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Means for recording the indications of an electrically controlled indicator
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US2575872A
|
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Cam and pawl actuated tens transfer device
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US2433608A
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Electromagnetic stepping mechanism for numeral wheels
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US2430113A
|
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Registering and displaying apparatus
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CA513595A
|
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Ticket printing and issuing machines
|
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CA477916A
|
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Aggregating and displaying devices particularly applicable to totalisators
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