Durable organic square ruler with clear scales

Durable organic square ruler with clear scales

  • CN 201,544,643 U
  • Filed: 09/25/2009
  • Issued: 08/11/2010
  • Est. Priority Date: 09/25/2009
  • Status: Active Grant
First Claim
Patent Images

1. the clear durable organic T-square of scale comprises main scale body (1), secondary blade (2), secondary scale (3), master calibration (4) and groove (5);

  • It is characterized in that;

    main scale body (1) and vertical linking to each other of secondary blade (2), the surface of main scale body (1) are provided with the bottom that groove (5), master calibration (4) are positioned at groove (5), and secondary blade (2) is provided with secondary scale (3).

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