Title:
OPERATION AUXILIARY
Document Type and Number:
Japanese Patent JPS5686397
Kind Code:
A
Inventors:
TOUKAWA HIROICHI
Application Number:
JP16277779A
Publication Date:
July 14, 1981
Filing Date:
December 17, 1979
Export Citation:
Assignee:
HITACHI LTD
International Classes:
G21C17/00; G05B23/02; G21D3/00; G21D3/04; (IPC1-7): G05B23/02; G21C17/00; G21D3/04
Domestic Patent References:
| JPS4962894A | 1974-06-18 | |||
| JPS4980493A | 1974-08-02 |