New instant opening telegram (Machine-translation by Google Translate, not legally binding)

摘要

A new instant-opening telegram, characterized in that it comprises a telegram form, which carries along the edge of its closing flap, a thread of silk, rayon, nylon, etc., adhered by means of rubber or glue, which forms a thin layer of film, further characterized, that the said thread is endowed by one end of a thread, and on the opposite side extends outside the printed, leaving a free part, whose portion serves so that when pulling exercising pressure on it, cut the flap along its entire length. (Machine-translation by Google Translate, not legally binding)