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US2347194A
(en)
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Traffic control device
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US2528790A
(en)
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Auto checking and counting means for parking areas
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US3304539A
(en)
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Freeway access ramp traffic control
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BE420027A
(cs)
|
|
|
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US2170160A
(en)
|
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Traffic control system
|
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US3319222A
(en)
|
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Traffic control device
|
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US2048740A
(en)
|
|
Light sensitive apparatus
|
|
US2149998A
(en)
|
|
Traffic detector
|
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CN115862350B
(zh)
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|
一种非接触式实现行人与机动车协调放行的信号控制系统
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DE1154963B
(de)
|
|
Einrichtung zur Verkehrsueberwachung
|
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US3167381A
(en)
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Vehicle speed detection system
|
|
Pinnell et al.
|
|
Inbound gulf freeway ramp control study ii |
|
FR2824945A1
(fr)
|
|
Procede et dispositif de guidage d'une automobile vers une destination
|
|
US2199572A
(en)
|
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Traffic signal
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US2090655A
(en)
|
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Traffic control system and apparatus
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US2050637A
(en)
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Traffic signal controlled by vehicles
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|
FR2402559A1
(cs)
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|
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US2119593A
(en)
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Traffic signal system
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|
US909146A
(en)
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Relay.
|
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US2135525A
(en)
|
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Automatic variable traffic regulator
|
|
US1522617A
(en)
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|
Traffic-signal device
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|
US2129446A
(en)
|
|
Traffic control signal
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|
USRE21084E
(en)
|
|
Variable traffic signal |
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BE395813A
(cs)
|
|
|
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Preist
|
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The author's reply to the discussions on “Electrical control of road traffic by vehicle actuation” at London, Leeds and Edinburgh |