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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS51128539
Kind Code:
U
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Application Number:
JP5017375U
Publication Date:
October 18, 1976
Filing Date:
April 14, 1975
Export Citation:
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International Classes:
G03B23/02; G03B21/00; (IPC1-7): G03B21/00
Domestic Patent References:
JPS5040120A1975-04-12