A gun that fires a missile, powered by gas "discharged by the operator of the toy."
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| Number | Title | Issue Date |
| 6996367 | Test administration system using the internet A test administration system comprises a central computer and associated database containing a plurality of tests that may be distributed to a test taker. The central computer provides a website to be accessed by the test administrator and the test taker at remote p... | 02/07/2006 |