...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 4692462 | Compositions and method of controlling transdermal penetration of topical and systemic agents Compositions and methods useful for improved and controlled transdermal and transmembrane drug delivery of topical and systemic agents. The compositions and methods comprise a pharmacologically active drug together with a non-toxic pharmaceutically accept... | 09/08/1987 |
| 4384003 | Contraceptive suppository A vaginal contraceptive suppository having both a rapid release of active ingredient and prolonged duration of effectiveness. The suppository comprises a mixture of sodium starch glycolate, a thickening agent and a vegetable oil base combined with a sperm... | 05/17/1983 |