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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5060040
Kind Code:
U
Application Number:
JP11369073U
Publication Date:
June 03, 1975
Filing Date:
September 29, 1973
Export Citation:
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International Classes:
G03B7/14; G03B7/0805; G03B7/12; (IPC1-7): G03B7/12; G03B7/00
Domestic Patent References:
JPS4415751Y11969-07-07
Foreign References:
US3638544A1972-02-01



 
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