发明授权
US06305608B1 Pen type code reader 失效
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Pen type code reader
摘要:
A pen type code reader is provided with two pairs of substantially parallel anti-tilt ridges arranged on the respective opposite external sides of the front section of the code reader main body to be located along the scanning direction and projecting in the scanning direction. The code reader further includes a groove arranged on the front surface of the front section of the code reader main body and open at the opposite ends to the external sides in the scanning direction and having a width substantially equal to the width of the code pattern.
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