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发明名称
Rolling support for writing instruments
摘要
申请公布号
US2497418(A)
申请公布日期
1950.02.14
申请号
US19450625351
申请日期
1945.10.29
申请人
SCHROEDER JR RUSSELL A
发明人
JR. RUSSELL A. SCHROEDER,
分类号
B43K23/04
主分类号
B43K23/04
代理机构
代理人
主权项
地址
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