Title:
【考案の名称】船尾管シール漁網絡付き防止構造
Document Type and Number:
Japanese Patent JPH04136997
Kind Code:
U
Inventors:
Akira Hoshi
Application Number:
JP5407191U
Publication Date:
December 21, 1992
Filing Date:
June 17, 1991
Export Citation:
International Classes:
B63B23/34; B63B23/36; F16J15/16; (IPC1-7): B63B23/36; B63B23/34; F16J15/16