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Application filed by Tamfelt Oy AbfiledCriticalTamfelt Oy Ab
Priority to FI851166ApriorityCriticalpatent/FI77072C/en
Publication of FI851166A0publicationCriticalpatent/FI851166A0/en
Publication of FI851166LpublicationCriticalpatent/FI851166L/en
Publication of FI77072BpublicationCriticalpatent/FI77072B/en
Application grantedgrantedCritical
Publication of FI77072CpublicationCriticalpatent/FI77072C/en
FOERFARANDE OCH ANORDNING FOER ATT FASTSTAELLA BESKAFFENHETEN AV EN BERG- ELLER STENVOLYM SAMT HAOLLFASTHETEN AV DAERI INFAESTADE FAESTELEMENT SAOSOM BERGBULTAR.