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经营范围
发明名称
Lateral film edge pressure spring
摘要
申请公布号
US2461471(A)
申请公布日期
1949.02.08
申请号
US19470777280
申请日期
1947.10.01
申请人
GENERAL ANILINE & FILM CORPORATION
发明人
JACOBSON CARL H.
分类号
G03B1/42
主分类号
G03B1/42
代理机构
代理人
主权项
地址
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