DEVICE FOR PLACING, RETRACTING OR SHOWING AT LEAST ONE FLEXIBLE SCREEN
- 专利权人:
- RHONE-POULENC FILMS
- 发明人:
- GROSJEAN, PIERRE,JANIN, BERNARD
- 申请号：
- EP19840420074
- 公开号：
- EP0124456(B1)
- 申请日:
- 1984.04.19
- 申请国别(地区):
- 欧洲专利局
- 年份:
- 1987
- 代理人:
- 摘要：
- 来源网站：
- 中国工程科技知识中心
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