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发明名称
Pipe exchanger scraper
摘要
申请公布号
US2449012(A)
申请公布日期
1948.09.07
申请号
US19450605975
申请日期
1945.07.19
申请人
SOCONY-VACUUM OIL COMPANY, INCORPORATED
发明人
SCHLEY THOMAS E.
分类号
C10G73/32;F28F19/00
主分类号
C10G73/32
代理机构
代理人
主权项
地址
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