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发明名称
DEVICE FOR RECOGNIZING CLOSED AREA IN PICTURE
摘要
申请公布号
JPH0442377(A)
申请公布日期
1992.02.12
申请号
JP19900149070
申请日期
1990.06.07
申请人
RICOH CO LTD
发明人
HIKITA TOSHIYA
分类号
G06T7/60
主分类号
G06T7/60
代理机构
代理人
主权项
地址
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