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DE767104C
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Light signal system, especially for brake test reporting systems in railway companies
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DE498663C
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Rail current switch
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DE469657C
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Rail current switch
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DE439056C
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Protection circuit for X-ray equipment
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DE443870C
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Automatic push-button overcurrent switch in plug form with hot wire release and axially movable switching element
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DE425231C
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Protection circuit for X-ray equipment
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DE585998C
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Two-part wire or rope clamp
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DE468342C
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Plug switch with control of the switch through the plug
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DE477054C
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Rail current switch for railway warning systems
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