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 Helvar OyfiledCriticalHelvar Oy
Priority to FI740134ApriorityCriticalpatent/FI52781C/fi
Priority to SE7500302Aprioritypatent/SE401964B/xx
Publication of FI740134A0publicationCriticalpatent/FI740134A0/fi
Application grantedgrantedCritical
Publication of FI52781BpublicationCriticalpatent/FI52781B/fi
Publication of FI52781CpublicationCriticalpatent/FI52781C/fi
H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
H01F41/0206—Manufacturing of magnetic cores by mechanical means
H01F41/0233—Manufacturing of magnetic circuits made from sheets
Landscapes
Engineering & Computer Science
(AREA)
Power Engineering
(AREA)
Manufacturing & Machinery
(AREA)
FI740134A1974-01-171974-01-17Menetelmä muuntajan tai kuristimen sydänlevyjen valmistamiseksi.
FI52781C
(fi)