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发明名称
Method and means of fabricating tubing of vitreous material
摘要
申请公布号
US1923148(A)
申请公布日期
1933.08.22
申请号
US19290397551
申请日期
1929.10.05
申请人
FRED HOTCHNER
发明人
HOTCHNER FRED
分类号
C03B23/06;H01J9/24
主分类号
C03B23/06
代理机构
代理人
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