Patents Assigned to INCHEON SURVEY INSTRUMENT CO., LTD.
  • HORIZONTAL OR VERTICAL LINE TEST DEVICE AND SYSTEM
    Publication number: 20210231436
    Abstract: Disclosed is a horizontal or vertical line test device for testing for an error by receiving a horizontal or vertical line laser emitted from an emitting device when a building is constructed. The horizontal or vertical line test device comprises: a reference line part which can be compared with at least one of a horizontal line laser and a vertical line laser; and a light reception part which receives at least one of an incident horizontal line laser and an incident vertical line laser.
    Type: Application
    Filed: March 14, 2019
    Publication date: July 29, 2021
    Applicant: INCHEON SURVEY INSTRUMENT CO., LTD.
    Inventor: Seok Ki EUN
  • Digital staff
    Patent number: D850944
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: June 11, 2019
    Assignee: INCHEON SURVEY INSTRUMENT CO., LTD.
    Inventors: Hi Song Eun, Dae Hyun Lee, Yun Kyu Lee, Hee Chul Shin
  • Tape measure
    Patent number: D883824
    Type: Grant
    Filed: November 10, 2018
    Date of Patent: May 12, 2020
    Assignee: Incheon Survey Instrument Co., Ltd
    Inventors: Dae Hyun Lee, Yun Kyu Lee