Document Type and Number:
Japanese Patent JPS63141919
Kind Code:
U
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Application Number:
JP3474287U
Publication Date:
September 19, 1988
Filing Date:
March 10, 1987
Export Citation:
International Classes:
G02C3/00; (IPC1-7): G02C3/00
Domestic Patent References:
| JPS6025614B2 | 1985-06-19 |