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Document Type and Number:
Japanese Patent JPS62146132
Kind Code:
U
Application Number:
JP3336486U
Publication Date:
September 16, 1987
Filing Date:
March 08, 1986
Export Citation:
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International Classes:
G03B27/58; G03B21/00; G03B21/56; G03B27/32; G03C5/04; (IPC1-7): G03B27/58; G03B21/00; G03B21/56
Domestic Patent References:
JPS50124335U1975-10-11
JPS5854339A1983-03-31
JPS5034521A1975-04-02
JPS513632A1976-01-13
JPS51100808A1976-09-06



 
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