Document Type and Number:
Japanese Patent JPS5075369
Kind Code:
U
Application Number:
JP13110873U
Publication Date:
July 01, 1975
Filing Date:
November 12, 1973
Export Citation:
International Classes:
G04B37/00; G04C3/00; G04G21/00; G04G99/00; H01H35/00; H01H36/00; (IPC1-7): G04C3/00; G04B37/00; H01H35/00
Domestic Patent References:
| JP48070676B |