Feature Plastic Slide Fastener Improved; Uses No Metal By Science News Magazine Issue: Vol. 42 No. #19, November 7, 1942 Share this:Share Share via email (Opens in new window) Email Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Print (Opens in new window) Print Having trouble viewing this? Open in a new window