Patents Assigned to Ting Fong Electric & Machinery Co., Ltd.
  • Hole drilling machine with magnetic holder
    Patent number: D681080
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: April 30, 2013
    Assignee: Ting Fong Electric & Machinery Co., Ltd.
    Inventor: Hsien-Pei Wang
  • Core drill
    Patent number: D936118
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: November 16, 2021
    Assignee: TING FONG ELECTRIC & MACHINERY CO., LTD.
    Inventor: Hsien-Pei Wang