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发明名称
METHOD FOR MODIFYING CONVENTIONAL SNOW SKIIS TO PERMIT DOWNHILL SKIING ON SMOOTH GRASSY SLOPES DURING NON-WINTER PERIODS
摘要
申请公布号
US3522951(A)
申请公布日期
1970.08.04
申请号
USD3522951
申请日期
1968.09.16
申请人
CHARLES M. TYSON
发明人
CHARLES M. TYSON
分类号
A63C5/06;(IPC1-7):A63C17/04
主分类号
A63C5/06
代理机构
代理人
主权项
地址
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