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GB491004A
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Improved safety cut-off valve for gas meters and other gas appliances
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GB497583A
|
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Improvements in or relating to the registering mechanism of gas, electricity and similar meters
|
|
GB487965A
|
|
Improvements in coin-operated cocks and valves for controlling the supply of fluids
|
|
GB479230A
|
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An improved by-pass fitting for use with gas meters
|
|
GB486761A
|
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Improvements in gas meters
|
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GB474083A
|
|
Improvements in pre-payment meters for gas, electricity and the like
|
|
GB457364A
|
|
Planetary gearing
|
|
GB457363A
|
|
Improvements in prepayment mechanism for gas and similar meters
|
|
GB463565A
|
|
Coin-operated time controlling mechanism for use in connection with the supply of gas, electricity and other commodities
|
|
GB448868A
|
|
Improvements in prepayment mechanism for gas and similar meters
|
|
GB448862A
|
|
Improvements in prepayment mechanism for gas and similar meters
|
|
GB448257A
|
|
Coin-freed prepayment mechanism for electricity meters
|
|
GB432980A
|
|
Improvements in coin-freed mechanism
|
|
GB412425A
|
|
Improvements in prepayment mechanism for gas and like meters
|
|
GB419532A
|
|
Improvements in coin-freed mechanism
|
|
GB403718A
|
|
Improvements in or relating to prepayment gas meters
|
|
GB384106A
|
|
Improvements in or relating to gas meters
|
|
GB373031A
|
|
Improvements in or relating to gas meters
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