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Filing date
Publication date
Application filed by Valo Antti TfiledCriticalValo Antti T
Priority to FI261271ApriorityCriticalpatent/FI52942C/fi
Priority to SE295572Aprioritypatent/SE386852B/xx
Priority to NO78072Aprioritypatent/NO138326C/no
Priority to PL15404072Aprioritypatent/PL77555B1/pl
Priority to DE19722212158prioritypatent/DE2212158B2/de
Priority to DD16158172Aprioritypatent/DD97587A5/xx
Priority to SU1758712Aprioritypatent/SU406336A3/ru
Priority to CS181972Aprioritypatent/CS155111B2/cs
Application grantedgrantedCritical
Publication of FI52942BpublicationCriticalpatent/FI52942B/fi
Publication of FI52942CpublicationCriticalpatent/FI52942C/fi