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发明名称
Rotary ice scoring machine
摘要
申请公布号
US1812731(A)
申请公布日期
1931.06.30
申请号
US19280255769
申请日期
1928.02.20
申请人
CAMERON WESTMAN FRANCIS
发明人
WESTMAN FRANCIS CAMERON
分类号
B23D45/10;F25C5/14
主分类号
B23D45/10
代理机构
代理人
主权项
地址
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