| 摘要 |
The post card has an illustrated subject (2) on one of its faces (4b) and at least one active zone (3) which releases a scent when scratched. The odour corresponds to the subject of the postcard. The active zone can have a protective (MP) to prevent accidental scratching and release of the seat. The active zone can be a printed odour release ink covered by a varnish.
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