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JPH01288280A
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Hitting practice device for baseball
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JPS6415299A
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Side pressure type forming method and its device
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JPS63268619A
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Method and apparatus for mold clamping
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JPS63222809A
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Molding method of bottomed parison and its molding equipment
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JPS63216720A
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Extrusion and pressing-in molding method for synthetic resin
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JPS63125310A
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Molding parison having bottom for hollow molding
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JPS6230828A
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High temperature separation refining method for solid substance such as rock
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JPS6183795A
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Apparatus for deep foundation construction method
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JPS6128627A
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Energy-saving construction for deep foundation
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US4503629A
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System for collecting and conveying undersea mineral resources
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JPS60119805A
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Erosion-preventive and recovery work for seaside
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JPS6040781A
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Wave energy converter correspondable to change of direction
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JPS6013119A
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Method and apparatus for continuous driving of object into bottom under water
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JPS5955995A
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Mining device for nodule-shaped sea-bottom resource
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JPS5941597A
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Method and apparatus for mining ore from sea bottom hot water ore bed
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JPS5918894A
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Apparatus for collecting resources accumulated on sea bottom
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JPS5744776A
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Collecting and intensifying method of tidal energy capable of coping with wave direction change
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JPS5614866A
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Pressure converting method for shallow-sea wave energy
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JPS5428013A
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Apparatus for converting intermittent high pressure liquid flow to continuous high pressure liquid flow
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JPS547701A
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Working process for installing submarine tower
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