Graphite positioning column

Graphite positioning column

CN
  • CN 202,259,220 U
  • Filed: 09/01/2011
  • Issued: 05/30/2012
  • Est. Priority Date: 09/01/2011
  • Status: Active Grant
First Claim
Patent Images

1. a graphite reference column is made up of last locating piece, following locating piece and pilum, and last locating piece, following locating piece and pilum connecting place offer notch, it is characterized in that:

  • the said cross section of locating piece up and down is a rhombus.

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