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发明名称
Federschwungbrett (Trampolin) für Turnzwecke.
摘要
申请公布号
AT139494(B)
申请公布日期
1934.11.26
申请号
ATD139494
申请日期
1934.01.18
申请人
V. DOLFFS & HELLE
发明人
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