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发明名称
Thickness-shrinkage-controlled die assembly
摘要
申请公布号
US2333051(A)
申请公布日期
1943.10.26
申请号
US19410420193
申请日期
1941.11.24
申请人
THE UNIVIS LENS COMPANY
发明人
SMITH CHARLES V.
分类号
B29C31/00;B29C37/00;B29C43/00;B29D11/00
主分类号
B29C31/00
代理机构
代理人
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地址
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