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发明名称
Optical devices
摘要
申请公布号
US4893907(A)
申请公布日期
1990.01.16
申请号
US19870130462
申请日期
1987.11.30
申请人
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
发明人
MALLINSON, STEPHEN R.
分类号
G02B6/12;G02F1/13;G02F1/133;G02F1/1333;G02F1/137;G02F1/29;G02F1/295;G02F1/313
主分类号
G02B6/12
代理机构
代理人
主权项
地址
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