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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS56145022
Kind Code:
U
Application Number:
JP4225480U
Publication Date:
November 02, 1981
Filing Date:
March 29, 1980
Export Citation:
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International Classes:
G02C3/02; A61F9/02; A61F9/06; G02C7/10; (IPC1-7): G02C3/02; A61F9/02; G02C7/10
Domestic Patent References:
JPS531456B11978-01-19
JPS252382Y1
JPS3514463Y1
JPS3810675Y1



 
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