Filed: August 14, 2018 Cameras; Epidiascopes; Frames for photographic transparencies; Rechargeable electric batteries; Slide or photograph projection… Owned by:LIU, JING Serial Number:88078483
Filed: May 21, 2021 Calipers for measuring trees; Depth gauges; Length measuring gauges; Measurement standard devices for nanometrology, namely… Owned by:LIU, JING Serial Number:90726173