Laminated core
United States Patent 2489977
US Patent References:
/1224210.html
- - 1224210

Electromagnetic apparatus
- - 1365568

Core for electrical apparatus
- - 1380983

Coupling transformer
- - 1547782

Electromagnetic device
- - 1616180


Inventors:
Porter, Harry F.
Publication Date:
11/29/1949
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Assignee:
Porter, Harry F.
Primary Class:
336/60
Other Classes:
29/609, 336/218, 336/234
International Classes:
H01F27/245; H01F41/02; H04R15/00
US Patent References:
1783063Magnetic core
1877254Sheet material
2302571Method of making electrical laminations