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US2029487A
(en)
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Illuminated cautery electrode
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BE360609A
(cs)
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GB706958A
(en)
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Improvements in or relating to travelling wave tubes
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(en)
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Gaseous discharge device
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CN109817499A
(zh)
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高功率密度水冷阳极
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(en)
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High-pressure series arc discharge lamp construction
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KR100596949B1
(ko)
|
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방전 램프용 점화 장치
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CN223274243U
(zh)
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一种低耗能的led灯印刷线路板的电路结构
|
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JP3555051B2
(ja)
|
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ガラス封着用金属線および管球ならびに電気部品
|
|
BE340112A
(cs)
|
|
|
|
CN217607123U
(zh)
|
|
一种吸顶灯磁性老练治具
|
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(zh)
|
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一种导热性能良好的led支架及360°发光led光源
|
|
FR2833748A1
(fr)
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Tube electronique a collecteur simplifie
|
|
US2868978A
(en)
|
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Test apparatus
|
|
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(en)
|
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Integral night vision tube contact assembly and method of making
|
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BE423062A
(cs)
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BE463587A
(cs)
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|
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BE505828A
(cs)
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|
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US814162A
(en)
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Electric incandescent lamp.
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DE693059C
(de)
|
|
Elektrische Mischlichtlampe, bestehend aus einer Hochdruckentladungsroehre und einem als Vorschaltwiderstand dienenden Gluehdraht
|
|
US819793A
(en)
|
|
Electric incandescent lamp.
|
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JPH07111194A
(ja)
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照明器具
|
|
RU181310U1
(ru)
|
|
Герметичное устройство с тоководом
|
|
FR2517117A1
(fr)
|
|
Tube electronique muni d'un systeme de refroidissement
|
|
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(en)
|
|
Luminous tube apparatus
|