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经营范围
发明名称
PROJECTION HEAD
摘要
申请公布号
US3507572(A)
申请公布日期
1970.04.21
申请号
USD3507572
申请日期
1967.11.14
申请人
CHARLES BESELER CO.
发明人
JOHN C. NEMESNYIK
分类号
G03B21/132;(IPC1-7):G03B21/28
主分类号
G03B21/132
代理机构
代理人
主权项
地址
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