Inventor

NA BYEONG-KWAN

KR3 patents

Patents

3 patents

US9404258B2Aug 2, 2016

Reinforcing bar connector

JANGPYOUNG CONSTRUCTION CO LTD8 citations75

US10138918B2Nov 27, 2018

Fastening device

JANGPYOUNG CONSTRUCTION CO LTD0 citations32

US9617701B2Apr 11, 2017

Multi-stage extending ground anchor assembly

JANGPYOUNG CONSTRUCTION CO LTD0 citations32