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经营范围
发明名称
METHOD FOR PREPARING A SLIDE FOR VIEWING
摘要
申请公布号
US3447863(A)
申请公布日期
1969.06.03
申请号
USD3447863
申请日期
1966.07.11
申请人
SODELL RESEARCH & DEV. CO.
发明人
JAMES A. PATTERSON
分类号
G02B21/26;G02B21/34;(IPC1-7):G02B21/34
主分类号
G02B21/26
代理机构
代理人
主权项
地址
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