GENEVA, Jan. 17 -- GUANGZHOU LANGO ELECTRONIC TECHNOLOGY CO., LTD. (15/f, Unit 1, Building 2, No 11, Guangpu Road, Huangpu DistrictGuangzhou, Guangdong 510663), 广州朗国电子科技股份有限公司 (中国广东省广州市黄埔区光谱中路11号云升科学园2栋1单元15层) filed a patent application (PCT/CN2024/139836) for "IMAGE SUPERPOSITION DISPLAY METHOD AND APPARATUS BASED ON ELECTRONIC WHITEBOARD, DEVICE, AND MEDIUM" on Dec 17, 2024. With publication no. WO/2026/011692, the details related to the patent application was published ...