Statistics for occurrence #1 of “Ogden, Utah” in entry cannon of Harper's Encyclopedia of United States History:

...a common axis, placed upon block weighing about 386 tons, fires thirty rounds a minute; adopted by the United States in 1891. Automatic rapid-firing gun, invented by John and Matthew Browning, of Ogden, Utah ; firing 400 shots in one minute and forty-nine seconds; adopted by the United States in 1896. Zalinski's dynamite gun, calibre 15 ins.; throws 500 lbs. of explosive gelatine 2,100 yds.; also disc...
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