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JP2009108504A
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Ladder and ladder attachment
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JP2007322943A
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Memorization learning tool
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JP2007087135A
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Learning/translation method
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JPH11272154A
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Storage medium for conversation teaching material
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JPH10187024A
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Recording medium for conversation teaching material
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JPH06175572A
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Recording medium for education
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JPH0493882A
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Recording medium for foreign language memorization
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JPH0493883A
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Recording medium for foreign language memorization
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JPH01154080A
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Method for fast memorization by using audiovisual equipment and by repetition of fast memorization and reproduction
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JPS6315964A
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Method for transfer to work such as memory without damaging active state of brain cell issueing alpha brain wave
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JPS6315963A
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Method for reaching active state of brain cell issueing alpha brain wave within short time using visual and hearing sensation machinery
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JPS62177578A
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Use and fast memory of audio visual equipment
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JPS62131300A
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Conveying of affirmative of negative human will by length (long or short) uttering time of voice
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JPS61279255A
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Method for flowing pulse like minute current to head part inorder to change active state of brain cell
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JPS56156019A
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Decoder converting binary pulse code signal into pulse duration modulation using both positive and negative polarities type pulse
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JPS56106422A
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Decoding system by method for converting digital signal into pulse width modulated signal
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