Document Type and Number:
Japanese Patent JPS6451782
Kind Code:
U
Application Number:
JP14662187U
Publication Date:
March 30, 1989
Filing Date:
September 26, 1987
Export Citation:
International Classes:
F04B17/04; F04B45/04; H01F7/06; (IPC1-7): F04B45/04; F04B17/04; H01F7/06
Domestic Patent References:
| JPS5128803B1 | 1976-08-21 |