发明名称 PORTABLE MICROFICHE READING DEVICE
摘要 <p>The present invention relates to a portable microfiche reading device which is configured like a parallelepipedic breafcase including in the bottom of the breafcase (1) an optical unit and a viewer, and including within the cover (2) a projection screen (9). Furthermore, the cover is provided with means (10) for fixing a removable sheet in front of the projected image.</p>
申请公布号 WO1991010160(A1) 申请公布日期 1991.07.11
申请号 FR1990000898 申请日期 1990.12.11
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