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发明名称
Improvements in or relating to crutches
摘要
申请公布号
GB681218(A)
申请公布日期
1952.10.22
申请号
GB19500008932
申请日期
1950.04.11
申请人
JAMES BOOTH & COMPANY LIMITED
发明人
WILLITS ALFRED
分类号
A61H3/02
主分类号
A61H3/02
代理机构
代理人
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