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经营范围
发明名称
Adjustable threshold
摘要
申请公布号
US3402512(A)
申请公布日期
1968.09.24
申请号
US19660553955
申请日期
1966.05.31
申请人
FRANCIS C. PETERSON
发明人
PETERSON FRANCIS C.
分类号
E06B1/70
主分类号
E06B1/70
代理机构
代理人
主权项
地址
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