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经营范围
发明名称
Pulp manufacture
摘要
申请公布号
US2993537(A)
申请公布日期
1961.07.25
申请号
US19570703589
申请日期
1957.12.18
申请人
SPROUT WALDRON & COMPANY, INC.
发明人
GREEN FRANK B. K.
分类号
D21C3/24;D21C7/00;D21C7/08
主分类号
D21C3/24
代理机构
代理人
主权项
地址
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