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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS4977699
Kind Code:
U
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Application Number:
JP12280872U
Publication Date:
July 05, 1974
Filing Date:
October 24, 1972
Export Citation:
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International Classes:
B63H11/02; B63B35/73; B63H11/00; (IPC1-7): B63H11/00; B63B35/72
Domestic Patent References:
JP38018272A



 
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