Inventor
CHA KYU-SEOK
KR5 patents
⚠️ This page may combine multiple inventors who share the name “CHA KYU-SEOK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHA KYU-SEOK
3 patentsUS8959976B2Feb 24, 2015
Apparatus for manufacturing a metal plate for a duct, including mesh-type beads
CHA KYU-SEOK2 citations55
US8522587B2Sep 3, 2013
Joint jig of spiral duct manufacturing apparatus
CHA KYU-SEOK3 citations55
US8915109B2Dec 23, 2014
Manufacturing apparatus and method of spiral duct including elbow
CHA KYU-SEOK0 citations34