Title:
REFERENCE CARD AND METHOD OF CODING NOTCHES FOR SAME
Document Type and Number:
Japanese Patent JPS5255598
Kind Code:
A
Abstract:
PURPOSE: A refernce card having a multiplicity of segments formed by providing notches at given intervalsaat its circumferential edges is fixed on a steel base by aligning the segment part, then the segments of given positions are broken off by a hammering means.
Inventors:
IKESUE MASUMI
IWANAGA YOSHIHARU
IWANAGA YOSHIHARU
Application Number:
JP13100575A
Publication Date:
May 07, 1977
Filing Date:
October 31, 1975
Export Citation:
Assignee:
RICOH KK
International Classes:
G06K21/00; G06K21/06; (IPC1-7): G06K21/06
Domestic Patent References:
| JPS3520205Y1 | ||||
| JP36019056A | ||||
| JP38020161A | ||||
| JPS473842U | 1972-09-07 | |||
| JPS4724684A | ||||
| JPS5023899A | 1975-03-14 | |||
| JPS5099040A | 1975-08-06 | |||
| JP50100997B | ||||
| JPS3922306Y1 |