Title:
【考案の名称】告時装置
Document Type and Number:
Japanese Patent JPS58153380
Kind Code:
U
Inventors:
Masahiro Akabane
Application Number:
JP4752082U
Publication Date:
October 13, 1983
Filing Date:
March 31, 1982
Export Citation:
International Classes:
G04B21/04; G04B21/02; G04C21/04; G04C21/08; (IPC1-7): G04B21/02; G04B21/02; G04C21/04; G04C21/04
Domestic Patent References:
| JP54034761B | ||||
| JPS56112676A | 1981-09-05 |