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JPS60143543A
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Thermosensitive shortcircuiting and breaking switch
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JPS60100080A
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Approaching thunderbolt alarm apparatus
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JPS6027883A
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Approach of thunderbolt detection system
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JPS59105279A
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Ground electrode for preventng lightning
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JPS5989518A
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Automatic lightning preventing disconnecting line
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JPS58172883A
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Method of coating powder reducing agent
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JPS5889800A
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Arrester
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JPS58789A
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Alarm device for visitation of thunder
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JPS57196825A
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Lightning informing device
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JPS57145523A
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Lightning warning device utilizing transmission line
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JPS57122621A
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Ball arrester display unit
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JPS5788373A
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Warning device for visitation of thunder by utilizing automobile
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JPS5785790A
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High-voltage alarm device for lightning arresting and short prevention of crane car
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JPS576518A
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Lightning warning device
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JPS5697879A
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Surge counter
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JPS5652899A
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Stylus electrode unit for generating corona current
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JPS5646622A
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Thunder alarm
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JPS5630294A
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Electrode device for generating corona current
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JPS5619331A
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Surge counter
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JPS563980A
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Grounding electrode rod with rotary protuberance
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