Document Type and Number:
Japanese Patent JPS56145022
Kind Code:
U
Application Number:
JP4225480U
Publication Date:
November 02, 1981
Filing Date:
March 29, 1980
Export Citation:
International Classes:
G02C3/02; A61F9/02; A61F9/06; G02C7/10; (IPC1-7): G02C3/02; A61F9/02; G02C7/10
Domestic Patent References:
JPS531456B1 | 1978-01-19 | |||
JPS252382Y1 | ||||
JPS3514463Y1 | ||||
JPS3810675Y1 |