Title:
【考案の名称】情報隠蔽カード
Document Type and Number:
Japanese Patent JP2577237
Kind Code:
Y2
Inventors:
Hidehito Sugawara
Application Number:
JP17123288U
Publication Date:
July 23, 1998
Filing Date:
December 29, 1988
Export Citation:
Assignee:
Toppan Forms Co., Ltd.
International Classes:
B42D15/02; B42D11/00; G06K19/00; G06K19/10; (IPC1-7): B42D15/02
Domestic Patent References:
| JP63116375U | ||||
| JP58112574U | ||||
| JP62154870U | ||||
| JP6283674U | ||||
| JP1158166U |