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发明名称
DEVICE FOR PRODUCING ORNAMENTAL AND DECORATIVE BUBBLE EFFECTS
摘要
申请公布号
CA448594(A)
申请公布日期
1948.05.18
申请号
CAD448594
申请日期
申请人
RAYLITE ELECTRIC CORP.
发明人
JOHN PETRY
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主分类号
代理机构
代理人
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