Login| Sign Up| Help| Contact|

Patent Searching and Data


Document Type and Number:
Japanese Patent JPS6251355
Kind Code:
B2
Inventors:
YOSHIKAWA TADAO
HIRATA SHOZO
Application Number:
JP6124282A
Publication Date:
October 29, 1987
Filing Date:
April 12, 1982
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HITACHI SHIPBUILDING ENG CO
International Classes:
E21B3/02; E21B3/00; E21B7/20; E21D1/03



 
Previous Patent: Micro-cellular Zirconium Kay acid chloride for disposal of high potassium Bleeding

Next Patent: JPS6251356