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device for punctate agents of a informationsberande medium
device for punctate agents of a informationsberande medium
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机译:信息安全媒介的点状代理装置
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摘要
A device for marking an information carrying medium has an arm with a pointed tip adapted to engage the medium. The arm is spring biased for movement in one direction, and a solenoid structure is provided for moving the arm in the other direction. A land surface cooperates with the arm to form an air pressure damping arrangement to damp movements of the arm in a direction away from the information carrying medium.
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