Patents Assigned to Porceny Co., Ltd.
  • Dowel pin setting instrument
    Patent number: 4229167
    Abstract: A dowel pin setting instrument provided with a supporting means having a first member and a second member detachably inserted into the first member so as to prevent its rotation therein and mounted on an impression material other than a tooth mark and a flexible tube having dowel pin fitted at one end thereto and coupled at the other end to supporting means.
    Type: Grant
    Filed: June 30, 1978
    Date of Patent: October 21, 1980
    Assignee: Porceny Co., Ltd.
    Inventors: Makoto Kikuchi, Keijyu Yamada