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发明名称
Blue printing apparatus
摘要
申请公布号
US1817242(A)
申请公布日期
1931.08.04
申请号
US19280321992
申请日期
1928.11.26
申请人
GULF PRODUCTION COMPANY
发明人
DICKEY ALFRED B.
分类号
G03B27/02
主分类号
G03B27/02
代理机构
代理人
主权项
地址
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