Document Type and Number:
Japanese Patent JPS4947873
Kind Code:
A
Application Number:
JP8168372A
Publication Date:
May 09, 1974
Filing Date:
August 15, 1972
Export Citation:
International Classes:
H01F7/16
Domestic Patent References:
| JP45023905A | ||||
| JPS4431363Y1 | 1969-12-24 | |||
| JP42027145A |