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发明名称
Production of silhouettes for composite motion pictures
摘要
申请公布号
US1955993(A)
申请公布日期
1934.04.24
申请号
US19310572810
申请日期
1931.11.03
申请人
WILLIAMS FRANK D
发明人
WILLIAMS FRANK D.
分类号
G03B15/08
主分类号
G03B15/08
代理机构
代理人
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