Inventor
HE JIAJIE
CN3 patents
⚠️ This page may combine multiple inventors who share the name “HE JIAJIE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CRRC QINGDAO SIFANG CO LTD
2 patentsUS11505219B2Nov 22, 2022
Combined device having device for connecting cross beam for receiving pivot pins and two lower longitudinal beams of coach body for rail vehicle
CRRC QINGDAO SIFANG CO LTD0 citations43
US11370463B2Jun 28, 2022
Roof segments for the roof of a carriage body
CRRC QINGDAO SIFANG CO LTD0 citations41