| 摘要 |
A method for forming individual letters provided with envelopes from printed same-size sheets, includes pre-printed envelope forms for forming the envelopes, and in the immediate vicinity of each envelope form one or more letter forms for forming a letter or letters and inserting them in the envelope. The envelope form is led as such to envelope formation; the letter forms are cut at least on one side into letters which are smaller than the letter forms; the letters are brought to contact with the envelope form; the envelope form is folded in two around the letters and glued at the side edges to form an open envelope; and the open flap of the envelope is glued and folded so that a sealed letter provided with an envelope is formed.
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