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发明名称
Drafting instrument
摘要
申请公布号
US1986661(A)
申请公布日期
1935.01.01
申请号
US19310547079
申请日期
1931.06.26
申请人
ALTENEDER THEODORE G
发明人
ALTENEDER THEODORE G.
分类号
B43L9/22
主分类号
B43L9/22
代理机构
代理人
主权项
地址
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