Login| Sign Up| Help| Contact|

Patent Searching and Data


Document Type and Number:
Japanese Patent JPS491228
Kind Code:
A
Application Number:
JP3797472A
Publication Date:
January 08, 1974
Filing Date:
April 15, 1972
Export Citation:
Click for automatic bibliography generation   Help
International Classes:
G03B31/06; G03B31/04; (IPC1-7): G03B31/04



 
Next Patent: JPH0491229