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Priority to JP5731465UpriorityCriticalpatent/JPS4222400Y1/ja
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Optical system for selectively forming image of shrink pattern on each portion of mirror surface lighttsensitive plastic film and selectively erasing image from these portions for repeated use
Optical system for selectively forming image of shrink pattern on each portion of mirror surface lighttsensitive plastic film and selectively erasing image from these portions for repeated use