![Telefunken](/logo/Telefunken.png)
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![Temic](/logo/Temic.png)
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![Siemens](/logo/Siemens.png)
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![ETC](/logo/ETC.png)
Unspecified
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![ETC1](/logo/ETC1.png)
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![ITT](/logo/ITT.png)
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![ETC1](/logo/ETC1.png)
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