Document Type and Number:
Japanese Patent JPS51110002
Kind Code:
U
Application Number:
JP2861575U
Publication Date:
September 06, 1976
Filing Date:
March 04, 1975
Export Citation:
International Classes:
B25D9/12; B25D9/00; E21B1/00; E21B1/26; F15B11/16; (IPC1-7): E21C3/20; B25D9/00; F15B11/16