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US1950611A
|
|
Linear induction motor
|
|
US1976223A
|
|
Vehicle and vehicle door operating mechanism
|
|
US1957209A
|
|
Magnetic steel dust collector
|
|
US1998718A
|
|
Transportation vehicle
|
|
US1744891A
|
|
Passenger vehicle
|
|
US1738997A
|
|
Holding-circuit means
|
|
US1655501A
|
|
Turnstile lock and release device
|
|
US1724932A
|
|
Passageway-control mechanism
|
|
US1690580A
|
|
Means for protecting electrical line conductors
|
|
GB210446A
|
|
Improvements in and relating to fares collecting systems
|
|
US1652623A
|
|
Emergency door-operating apparatus
|
|
US1680458A
|
|
Control mechanism for change making and ejecting devices
|
|
US1629621A
|
|
Change making and ejecting mechanism
|
|
GB197327A
|
|
Improvements in slug detecting device for coin controlled machines
|
|
GB197326A
|
|
Improvements in slug detector for coin controlled machines
|
|
US1652622A
|
|
One-man-car control equipment
|
|
US1539838A
|
|
Doorlock mechanism for multiple-unit car-door-control systems
|
|
US1630427A
|
|
Slug detector for coin-controlled machines
|
|
US1602487A
|
|
Slug-detecting device for coin-controlled machines
|
|
GB174065A
|
|
Improvements in fare boxes or coin receptacles
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