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发明名称
Apparatus for testing coated porous material
摘要
申请公布号
US2799156(A)
申请公布日期
1957.07.16
申请号
US19550500537
申请日期
1955.04.11
申请人
THE B. F. PERKINS & SON, INC.
发明人
JR. CHARLES A. SOUTHWICK,
分类号
G01N19/04
主分类号
G01N19/04
代理机构
代理人
主权项
地址
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