Title: Key board
Application Number: 99124216 Application Date: 1999.12.06
Publication Number: 1261201 Publication Date: 2000.07.26
Approval Pub. Date: Granted Pub. Date: 2003.09.10
International Classifi-cation: H01H13/12,H01H13/52
Applicant(s) Name: Zhao Huiling Address: 200120
Inventor(s) Name:
Attorney & Agent: chen liang
Abstract:
     A key board with low cost, long service life, low electric resistance and wide applications is made up of sheet material. Two symmetrical openings are arranged on said sheet material. A torsional plane between said two openings has a projected-down contact surface in its center and is symmetrical about said contact surface as center.
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