Document Type and Number:
Japanese Patent JPS5033811
Kind Code:
B1
Application Number:
JP4615471A
Publication Date:
November 04, 1975
Filing Date:
June 24, 1971
Export Citation:
International Classes:
C03B33/02; (IPC1-7): C03B33/02
Domestic Patent References:
| JPS4429275Y1 | 1969-12-03 |