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Filing date
Publication date
Application filedfiledCritical
Application grantedgrantedCritical
Publication of FR655668ApublicationCriticalpatent/FR655668A/fr
B42F13/00—Filing appliances with means for engaging perforations or slots
B42F13/16—Filing appliances with means for engaging perforations or slots with claws or rings
B42F13/20—Filing appliances with means for engaging perforations or slots with claws or rings pivotable about an axis or axes parallel to binding edges
B42F13/28—Filing appliances with means for engaging perforations or slots with claws or rings pivotable about an axis or axes parallel to binding edges in two staggered sections
FR655668D1928-02-211928-02-13Dispositif perforateur pour classeurs et analogues
ExpiredFR655668A
(fr)