IT1229834BIT8821978AIT2197888AIT1229834BIT 1229834 BIT1229834 BIT 1229834BIT 8821978 AIT8821978 AIT 8821978AIT 2197888 AIT2197888 AIT 2197888AIT 1229834 BIT1229834 BIT 1229834B
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Priority claimed from JP23533887Aexternal-prioritypatent/JPS6477591A/en
Priority claimed from JP63231304Aexternal-prioritypatent/JPH0279076A/en
Application filed by Daimatsu Kagaku Kogyo KkfiledCriticalDaimatsu Kagaku Kogyo Kk
Publication of IT8821978A0publicationCriticalpatent/IT8821978A0/en
Application grantedgrantedCritical
Publication of IT1229834BpublicationCriticalpatent/IT1229834B/en
A special type of postcard is claimed where part of the card is covered in a manner which is not detectable and under which information remains covered during its passage through the delivery system, but which can be readily seen by the addressee when uncovered.
IT8821978A1987-09-181988-09-16A special postcard
IT1229834B
(en)