Inventor · disambiguated record

Young Dong Cho

Also filed as: CHO YOUNG DONG

1 granted patent·4 citations·filing 2000–2000

24Inventor score

Technology areasE21D

Files withSHIM DONG SOO1

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1 record

0133US6431075B2Center-cut method for tunnel excavation utilizing large unloaded blast holes and a circular pre-splitSHIM DONG SOO·Filed 2000·Granted Aug 13, 2002·4 cites·9 claims

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