| 摘要 |
PURPOSE:To enable the space for the contents to be chosen at discretion by nature of the matter to be enclosed by forming at least on one side of the main space covered with an opaque sheet a subsidiary space covered with a transparent sheet. CONSTITUTION:An envelope 10 is formed by laying on the front of a bag 12 consisting of an opaque sheet a transparent sheet 14 which is the same as the bag 12 in breadth but shorter in length than the bag 12 and by fusing the sheets together at the right and left sides 16 and at the bottom 18. As a result, a main space 20 in which the enclosure is invisible and a pocketlike subsidiary space 22, on the front of the main space 20 in which the enclosure is visible are formed. In the main space 20, for example, a contract itself may be enclosed and in the subsidiary space 22 an index slip thereof showing the name of the contract may be enclosed. Or a membership list showing the names, addresses, and telephone numbers of members of a group may be enclosed in the main space 20 and a slip showing the name of the group, in the subsidiary space 22. Peep holes 26 are also formed in the opaque sheet so that it can be checked from outside whether there is an enclosure or not. |
