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发明名称
Perfectionnements aux dispositifs de tension constante sur la chaîne dans les changements de vitesse par déraillement de chaîne pour cycles et similaires
摘要
申请公布号
FR1023344(A)
申请公布日期
1953.03.17
申请号
FRD1023344
申请日期
1950.07.11
申请人
发明人
JUY LUCIEN-CHARLES-HIPPO
分类号
B62M9/124
主分类号
B62M9/124
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代理人
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