CH562702A5CH522973ACH522973ACH562702A5CH 562702 A5CH562702 A5CH 562702A5CH 522973 ACH522973 ACH 522973ACH 522973 ACH522973 ACH 522973ACH 562702 A5CH562702 A5CH 562702A5
Authority
CH
Switzerland
Application number
CH522973A
Original Assignee
Caran D Ache Fabrique Suisse D
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Caran D Ache Fabrique Suisse DfiledCriticalCaran D Ache Fabrique Suisse D
Priority to CH522973ApriorityCriticalpatent/CH562702A5/xx
Priority to US457255Aprioritypatent/US3903334A/en
Priority to JP49037314Aprioritypatent/JPS50925A/ja
Priority to DE2416327Aprioritypatent/DE2416327A1/de
Priority to FR7412698Aprioritypatent/FR2233160B3/fr
Publication of CH562702A5publicationCriticalpatent/CH562702A5/xx