Document Type and Number:
Japanese Patent JPS5248434
Kind Code:
U
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Application Number:
JP13523275U
Publication Date:
April 06, 1977
Filing Date:
October 02, 1975
Export Citation:
International Classes:
G02B5/12; E01F9/00; G02B5/128; G09F13/16; (IPC1-7): G02B5/128; E01F9/02; G09F13/16
Domestic Patent References:
| JPS314528Y1 |