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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5616461
Kind Code:
U
Application Number:
JP9960379U
Publication Date:
February 13, 1981
Filing Date:
July 19, 1979
Export Citation:
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International Classes:
A63B21/02; A63B23/02; A63B23/035; A63B23/16; (IPC1-7): A63B21/30; A63B23/02
Domestic Patent References:
JPS4519622Y11970-08-08
JPS4426521Y11969-11-07
JPS4428505Y11969-11-26