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US1901443A
(en)
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Signaling device
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PL41339B1
(cg-RX-API-DMAC7.html)
|
|
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US4206431A
(en)
|
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Monostable electromagnetic rotating armature relay
|
|
US1847339A
(en)
|
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Direct-current relay
|
|
US2892055A
(en)
|
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Polarized magnetic system for relays
|
|
GB478654A
(en)
|
|
Improvements in electrical relays
|
|
US2587983A
(en)
|
|
Electromagnetic device operable by alternating current
|
|
US1792318A
(en)
|
|
Electromagnetic apparatus
|
|
US2668275A
(en)
|
|
Unitary integrating meter and damping magnet structure
|
|
US1918473A
(en)
|
|
Polarized relay
|
|
US2486086A
(en)
|
|
Relay
|
|
GB315496A
(en)
|
|
Improvements relating to relays and other electromagnetic instruments and machines
|
|
US3533033A
(en)
|
|
Biassed electrical relays
|
|
US1758104A
(en)
|
|
Magnet
|
|
US4182984A
(en)
|
|
Magnetic damping assembly with temperature compensator for watthour meters
|
|
US1959562A
(en)
|
|
Electrical relay
|
|
US2254411A
(en)
|
|
Reverse power relay
|
|
US1521766A
(en)
|
|
Electricity meter
|
|
US1100188A
(en)
|
|
Electromagnetic device.
|
|
US2954525A
(en)
|
|
Single phase watthour meter
|
|
US1806039A
(en)
|
|
Apparatus responsive to the passage of railway vehicles
|
|
PL18835B1
(pl)
|
|
Bocznik magnetyczny do zmiany bledu licznika indukcyjnego, powstajacego wskutek temperatury.
|
|
US2708733A
(en)
|
|
Electric generator and its control
|
|
US2536162A
(en)
|
|
Relay
|
|
US2435001A
(en)
|
|
Polarized electromagnetic relay
|