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发明名称
Doorknob extension handles
摘要
申请公布号
US2756088(A)
申请公布日期
1956.07.24
申请号
US19540454049
申请日期
1954.09.03
申请人
SUTTER ARVID J
发明人
SUTTER ARVID J.
分类号
E05B1/00
主分类号
E05B1/00
代理机构
代理人
主权项
地址
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A device for feeding and discharging originals in sheet form.
