GB543437A
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Improvements in and relating to alternating electric current induction type watt hour meters
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GB530800A
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Improvements in and relating to electric meters of the induction type
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GB520786A
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Improvements in and relating to alternating electric current induction type watt-hour meters
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GB454252A
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Improvements in prepayment meters for electricity, gas and the like commodities
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GB437018A
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Improvements in or relating to electricity induction meters
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GB436957A
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Improvements in or relating to electricity induction meters
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GB415869A
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Improvements in and connected with fastenings for articles such as necklets, bracelets, bangles and bands
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GB393719A
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Improvements relating to electric current limiting apparatus
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GB394363A
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Improvements relating to electrically operated clocks
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GB340283A
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Improvements in printing mechanism for meters and other measuring or counting instruments
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GB337863A
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Improvements relating to maximum demand indicators for electric circuits
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GB317202A
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Improvements in or relating to electricity meters combined with time measuring devices
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GB312734A
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Improvements in or relating to devices employing electromagnets
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GB274559A
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Improvements relating to electric switches
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GB253997A
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Improvements relating to prepayment devices
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GB253242A
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Improvements relating to electric switches
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GB245536A
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Improvements relating to direct-current ampere-hour meters
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GB245707A
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Improvements relating to direct-current ampere-hour meters
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GB231712A
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Improvements relating to electrical measuring or indicating instruments
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GB233877A
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Improvements in alternating-current electricity meters
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