First, there’s that spring inside, cocked by putting the unit into a box and cranking a handle. This avoids the need for gas-canisters which need to [...]
Source: http://www.wired.com/gadgetlab/2010/11/pharmajet-a-spring-loaded-needle-free-injector/
JACK HENRY and ASSOCIATES IXYS ITRON IRON MOUNTAIN INORATED IOMEGA
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