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发明名称
Perfectionnements aux systèmes téléphoniques automatiques et semiautomatiques
摘要
申请公布号
FR43765(E)
申请公布日期
1934.08.30
申请号
FRD43765
申请日期
1933.05.03
申请人
LE MATERIEL TELEPHONIQUE, SOCIETE ANONYME
发明人
分类号
H04Q3/42
主分类号
H04Q3/42
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代理人
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MONITOR AND CONTROL SYSTEM OF PLANT
FREEZING CYCLE DEVICE
CONTAINMENT VESSEL VENT DEVICE
SISTEMA DI PONTE COSTITUITO DA TRAVI DI CARREGGIATA
CASSA ARMONICA DEL CANTO PER FISARMONICHE IN CUI LE VALVOLE SONO CONTENUTE NEL VANO RACCHIUSO DAL MANTICE
PRODUCTION OF CERAMICS
ULTRAHIGH-SPEED MR IMAGING METHOD
