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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS52133498
Kind Code:
U
Application Number:
JP4312476U
Publication Date:
October 11, 1977
Filing Date:
April 06, 1976
Export Citation:
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International Classes:
B63B35/14; B63B39/06; B63B43/12; (IPC1-7): B63B39/06; B63B35/14; B63B43/12
Domestic Patent References:
JPS4717397B1
JP49063697B