Doorstep for the home

• 1. 一种方便使用的家门口组合式保温保鲜食品网购箱 [P] . 中国专利： CN113988730A . 2022-01-28
• 2. 家门口快递柜 [P] . 中国专利： CN214410177U . 2021-10-15
• 3. DOORSTEP SEAL AS WELL AS DOOR PROVIDED WITH THE DOORSTEP SEAL [P] . 世界知识产权组织专利： WO2018026265A1 . 2018-02-08

  机译： DOORSTEP SEAL以及DOORSTEP SEAL提供的门

• 4. Bending apparatus for assembling doorstep [P] . 韩国专利： KR20200044482A . 2020-04-29

  机译： 组装门台阶的弯曲装置

• 5. DOORSTEP APPARATUS FOR VEHICLE [P] . 韩国专利： KR102022916B1 . 2019-09-20

  机译： 车门装置

• 1. Doorstep: A doorbell security system for the prevention of doorstep crime [C] . Andrew Ennis, Ian Cleland, Timothy Patterson, Annual International Conference of the IEEE Engineering in Medicine and Biology Society . 2016
• 2. War on the doorstep: Virginia in the War of 1812. [D] . Bonin, Christopher M. 2015
• 3. On Our Doorstep A Precious Cargo From MSCs: [O] . John P. Cooke 2020
• 4. Coming Soon to a Store—or Doorstep [O] . Nancy D. Lamontagne 2021

• 1. Cross-cultural Communication ——Cultural Reflections in Devil on the Doorstep [J] . 杨洁 . 商情 . 2014,第036期
• 2. 家门口的图书馆——石狮市流动图书车服务模式初探 [C] . 杨孙超 . 泉州市科协第十四届学术年会分会场——泉州市图书馆学会第十四届学术研讨会 . 2016