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GB465710A
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Improvements in and relating to the illumination of clock hands
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|
GB465243A
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Improvements in and relating to coin-freed vending machines
|
|
GB478702A
|
|
Improvements in and relating to current impulse transmitters
|
|
GB471603A
|
|
Improvements in and relating to printing telegraph systems
|
|
GB464528A
|
|
Improvements in and relating to printing telegraph apparatus
|
|
GB464029A
|
|
Improvements in and relating to electric selectors set by impulses
|
|
DE650253C
|
|
Luminescent hands for clocks
|
|
DE647589C
|
|
Goods magazine for self-sellers of stacked goods
|
|
GB442353A
|
|
Improvements in and relating to selectors for telephone systems
|
|
DE650478C
|
|
Skill game with bonuses in the form of receipts
|
|
DE636040C
|
|
Coin Canal
|
|
GB442278A
|
|
Improvements in or relating to double current telegraph installations
|
|
DE645375C
|
|
Circuit arrangement for two-wire connecting lines
|
|
DE648844C
|
|
Clock with dial illuminated by light bulbs
|
|
GB442613A
|
|
Improvements in and relating to telegraph installations
|
|
FR778936A
|
|
Charging circuit for electric batteries comprising the use of heat sensitive resistors
|
|
GB428662A
|
|
Improvements in and relating to the charging of electric batteries
|
|
DE649891C
|
|
Telegraph transmitter with uninterruptible battery switching to send out a sequence of double current pulses for each character to be transmitted
|
|
DE621815C
|
|
Heat time relay to achieve long switching times
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|
DE624287C
|
|
Double stream telegraph system
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