| 摘要 |
695,522. Compound sheet materials. PERSONAL PRODUCTS CORPORATION. Sept. 12, 1951. [Sept. 16, 1950] No. 21478/51. Drawings to Specification. Class 140. [Also in Group IX]. A compound sheet material comprises a relatively heavy layer of a non-woven fibre web and a relatively light layer of paper tissue united by the use of heat and high pressure applied along narrow lines spaced apart by a distance less than the mean length of the individual fibres. |
