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Armored speed boat is target for bombers Armored speed boat is target for bombers
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U.S fleet to be second to none U.S fleet to be second to none
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Popular Mechanics, v. 61, n. 5, 1934
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Model airplane helps teach flying Model airplane helps teach flying
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Mile-a-minute torpedo boat latest sea weapon
Mile-a-minute torpedo boat latest sea weapon
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Crewless bombing planes directed by radio Crewless bombing planes directed by radio
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Amazing ship models teach sea lore Amazing ship models teach sea lore
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Gasoline-driven gun as destructive as army Gasoline-driven gun as destructive as army
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Bullet makes a round hole instead of a jagged one
Bullet makes a round hole instead of a jagged one
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Popular Mechanics, v. 61, n. 4, 1934
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Streamlined "sky seat" lowered from blimp Streamlined "sky seat" lowered from blimp
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Troops wear signal lights when marching at night Troops wear signal lights when marching at night
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Rubber-band gun fires dart that sticks on target Rubber-band gun fires dart that sticks on target
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Pistol shooting only blanks has automatic ejector Pistol shooting only blanks has automatic ejector
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Flying fort bristles with gun and bombs Title: Flying fort bristles with gun and bombs
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Rubber-tired gun carriages make greater speed Rubber-tired gun carriages make greater speed
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Army aviators drill for flying in poison gas Army aviators drill for flying in poison gas
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Gun barrel flaw detector fits inside the bore Gun barrel flaw detector fits inside the bore
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Popular Mechanics, v. 61, n. 3, 1934
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Gigantic underground forts guard France Title: Gigantic underground forts guard France
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Giant searchlight for army has hundred-mile beam
Giant searchlight for army has hundred-mile beam
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Giant wind tunnel to test full-size aircraft Giant wind tunnel to test full-size aircraft
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Machine gunners in towers guard Shanghai street Machine gunners in towers guard Shanghai street
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Popular Mechanics, v. 61, n. 2, 1934
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Talking tube on battleship used to transmit orders Talking tube on battleship used to transmit orders
