| 摘要 |
<p>This invention provides a strip of cigarette filter plugwrap material having a regular array of apertures therein which are so shaped and so overlap in staggered rows perpendicular to the longitudinal axis of the strip and staggered columns parallel to the said axis that the total length of void transversed by any two lines extending the maximum width of the strip perpendicular to the said axis is the same. <IMAGE></p> |
