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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS50119339
Kind Code:
U
Application Number:
JP2832874U
Publication Date:
September 29, 1975
Filing Date:
March 13, 1974
Export Citation:
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International Classes:
G03B19/18; G03B21/48; G03B31/00; (IPC1-7): G03B21/48; G03B31/00
Domestic Patent References:
JP50074936B



 
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