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Breakwater against giant tsunami
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Lightning prevention method
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Power generator using wave-wind impeller
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Vessel in which refrigeration-heating cabinet, cold-keep-warm box, rice cooker, and thermos bottle are integrated
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Secondary battery and solar cell of superposing electric field
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Electric wire-shaped solar battery
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Removal of snow and ice accretion on overhead transmission line
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Snow removing device for roof
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Dividing and earthquake-weakening for great earthquake
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Plug and receptacle without creeping discharge
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Thermal shrinking rubber tube tire
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Partial protrusion adjusting device for tread
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Heat pipe used as top, heat-retention and bottom, and power generation
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Wave activated impeller power generation
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Measurement of partial discharge of electrical equipment
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Mass water accumulating small tsunami and wind power generation
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Defroster for preventing breakage of water supply pipe
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Solar light power generating device
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Wind force/water flow power generating set having hood
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Tidal wave power generating method
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