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发明名称
Method and apparatus for renewing the perforations of motion picture films
摘要
申请公布号
US2220523(A)
申请公布日期
1940.11.05
申请号
US19380230522
申请日期
1938.09.17
申请人
NOCHOUM KAGANSKI
发明人
KAGANSKI NOCHOUM
分类号
B26F1/00
主分类号
B26F1/00
代理机构
代理人
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