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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS50832
Kind Code:
A
Application Number:
JP4867173A
Publication Date:
January 07, 1975
Filing Date:
April 28, 1973
Export Citation:
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International Classes:
G03B7/083; G03B7/089; G03B9/70
Domestic Patent References:
JPS439139Y11968-04-22
JPS4717813U1972-10-30



 
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