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发明名称
Art of testing coins or other tokens for genuineness
摘要
申请公布号
US1945740(A)
申请公布日期
1934.02.06
申请号
US19320609378
申请日期
1932.05.05
申请人
FAIRFIELD SPECIALTIES CORPORATION
发明人
EDISON THEODORE M.
分类号
G07D5/08
主分类号
G07D5/08
代理机构
代理人
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