Tianjiao pen industry recruitment

It's true. This pencil applied for a utility model patent in 2004 and was granted a utility model patent in 2005. The following is some information about this patent:

Square pencil

ApplicationNo.: 20042008 1948.6 Application Date: August, 2004-16.

The utility model discloses a square lead-core movable pencil which is suitable for filling answer sheets and can be continuously cored out. It comprises an inner rod, a connector, an inner rod seat, a chuck, a locking ring and the like. The inner rod and the chuck are respectively provided with square lower core holes, the connector, the connector and the chuck are directionally sleeved on the inner rod to align the square lower core holes, and the inner rod is also provided with a rectangular core storage hole with the same width as the square lead core hole. The rectangular length of the core storage hole is equivalent to the sum of the widths or thicknesses of several square lead cores, and the left and right inner walls of the inner rod are respectively provided with lower core inclined planes with different heights corresponding to each square lead core.

Applicant: Han

Address: 3250 1 1 Tianjiao Pen Industry Company, Community 26, Wenzhou Economic and Technological Development Zone, Wenzhou, Zhejiang.

Inventor (Designer): Han

Main classification number: B43K2 1/04

Classification number: b43k21/04b43k19/18.