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JPS5953172A
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Striking tool
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JPS5868606A
|
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Deformograph
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|
JPS5811295A
|
|
Pipe constructing method without drilling groove
|
|
JPS5721697A
|
|
Method of and apparatus for drilling soil
|
|
JPS57130697A
|
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Method and apparatus for drawing out mud and sand from pipe struck into ground
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|
JPS56127505A
|
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Vibrator
|
|
JPS566892A
|
|
Rock crushing tool for impact machine
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JPS55152291A
|
|
Rock bed breaking tool for impact machine
|
|
JPS5544317A
|
|
Vibrator
|
|
JPS557303A
|
|
Air percussion tool
|
|
JPS54118087A
|
|
Vibrator
|
|
JPS5363702A
|
|
Pneumatic impact tool
|
|
JPS5435956A
|
|
Device of filling material in free condition to slotted hole
|
|
JPS543324A
|
|
Inversion type pneumatic pressure impact device
|
|
JPS53113116A
|
|
Pneumatic impact tool for boring
|
|
JPS5295807A
|
|
Method of producing onnsite assembly reinforced concrete
|
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JPS5265103A
|
|
Airrdriven automatic proceeding rotary impact boring machine
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JPS5257001A
|
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Rotary impact type pneumatic drilling device
|
|
JPS5212716A
|
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Reversible pneumatic impact apparatus for drilling ground
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|
JPS51151201A
|
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Doubleepiston rock drill
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