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发明名称
Preparation for repelling gnats and similar insects
摘要
申请公布号
US1821036(A)
申请公布日期
1931.09.01
申请号
US19270220847
申请日期
1927.09.20
申请人
WINTHROP CHEMICAL COMPANY
发明人
SCHMIDT ALBRECHT
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主分类号
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代理人
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