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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS51121056
Kind Code:
U
Application Number:
JP3724175U
Publication Date:
October 01, 1976
Filing Date:
March 20, 1975
Export Citation:
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International Classes:
G03B19/18; G03B1/60; G03B23/02; (IPC1-7): G03B1/60; G03B23/02
Domestic Patent References:
JPS4842538B11973-12-13