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JPS60188515A
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Inside-pit horizontal load testing machine
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JPS60104278A
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Underground searching method
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JPS59170568A
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Shaft sealing mechanism for stratum investigating probe
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JPS59163538A
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Probe for measuring specific gravity of liquid in hole
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JPS59112218A
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Method and device for measuring hole wall
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JPS5945730A
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Method for transmitting output of detector located underground or in water by cableless means
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JPS5938414A
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Grouting method using inclinometer casing pipe in pit
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JPS58171689A
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Oscillation source of logging for s-wave
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JPS58148985A
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Filter tube for velocity logging sonde
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JPS58142286A
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S wave generation by plate percussion method
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JPS5827080A
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Radioactivity detecting layer sonde
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JPS5811832A
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Method and device for measuring original point of tensile stress
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JPS582685A
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Vibration source for seismic prospecting
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JPS57200837A
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Ko consolidation test method and consolidation ring for use with said method
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JPS57192803A
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Calipers type hole diameter measuring device
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JPS57187493A
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Remotely operating valve for measuring water pressure of spring water in pit
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JPS57179777A
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Filter tube for velocity detecting sonde
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JPS57139641A
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Centering seat for load test
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JPS573065A
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Exciting source for s wave detecting layer
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JPS573064A
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Exciting source for p wave and s wave which do not accompany reaction
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