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 Boehler & Co Ag GebfiledCriticalBoehler & Co Ag Geb
Priority to AT337868ApriorityCriticalpatent/AT283613B/de
Priority to DE19691917494prioritypatent/DE1917494B2/de
Priority to FR6910631Aprioritypatent/FR2005776A1/fr
Priority to PL13282469Aprioritypatent/PL79412B1/pl
Priority to BE731176Dprioritypatent/BE731176A/xx
Priority to CH549069Aprioritypatent/CH506623A/de
Priority to GB1803069Aprioritypatent/GB1242946A/en
Priority to SE492269Aprioritypatent/SE363021B/xx
Priority to SU1319505Aprioritypatent/SU388411A3/ru
Priority to CS247369Aprioritypatent/CS188851B2/cs
Application grantedgrantedCritical
Publication of AT283613BpublicationCriticalpatent/AT283613B/de