Please help me check the authenticity of the patent number: ZL92 109959.2.

Application (patent)No.: 200420 1 1346.0 Description of large, medium and small utility models (page 6) ApplicationNo.: 20042011346.0 Application date: 2004.5438+. A 61b18/20 (2006.05438+0) I. Date of authorization: Priority: Applicant (patent right): Ma Ning Address: Room 2604, Changyuan Building, Qingnian Road 155, Wuhan, Hubei (design) Person: Ma Ning International Application. The control circuit in the control box consists of a microcontroller chip as the center, a power supply switching circuit, a microcontroller circuit, a digital display circuit, a button conversion circuit, a buzzer circuit and a laser signal amplification circuit. The utility model is small in size, easy to carry, the laser head can directly extend into the affected part, and the laser intensity is high, which has a good therapeutic effect on rhinitis, oral ulcer, insomnia, vascular headache and other diseases.

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