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JPS58123625A
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Multipolar changeover switch capable of continuing initial performance
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JPS5894730A
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Switch for bicycle with completely airtight waterproof mechanism
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JPS5878292A
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Wireless controlled rescue communicator enabling selection of immediate and stand by communication
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JPS5831495A
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Wireless controlled rescue communicator having alarm circuit for prevention of miscommunication and delay relay circuit
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JPS57164626A
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Transmitting device having completely waterproof mechanism in emergency reporting device of radio control
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JPS57141794A
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Rescue informing apparatus
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JPS55130661A
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Stabilized platinum asbestos body warmer that use liquefied gas such as propane as fuel
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JPS55119799A
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Monitor device for car exceeding limit speed
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JPS5541054A
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Speaker cable
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JPS54123940A
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Ion speaker without discharge chamber
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JPS54119914A
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Ion speaker
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JPS53142218A
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Ionic wind loudspeaker controlled by amplitudeemodulated high frequency waves
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JPS53141612A
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Griddcontrolled ionic wind loudspeaker
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JPS53137128A
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Ionic wind loudspeaker
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