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发明名称
Safety paper
摘要
申请公布号
US2246541(A)
申请公布日期
1941.06.24
申请号
US19370119524
申请日期
1937.01.07
申请人
SHERMAN;KATHERINE M. SHERMAN;WILLIAM C. SHERMAN;WELLMORE B. TURNER
发明人
YACKLEY WILBUR A.
分类号
B42D15/00
主分类号
B42D15/00
代理机构
代理人
主权项
地址
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