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"S O S" Signal in Colored Smoke Seen 30 Miles "S O S" Signal in Colored Smoke Seen 30 Miles
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Trap for Incendiary Bombs Smothers Their Fire Trap for Incendiary Bombs Smothers Their Fire
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Mightiest X-Ray Hurls a 1,400,000 Volt-Beam Mightiest X-Ray Hurls a 1,400,000 Volt-Beam
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Portable 1,000-Watt Generator Lights Fireman's Spotlight Portable 1,000-Watt Generator Lights Fireman's Spotlight
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"Eggs" for the Air Force Are Precision-Built "Eggs" for the Air Force Are Precision-Built
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Radio Detector for Surgeon Spots Metal in Wounds Radio Detector for Surgeon Spots Metal in Wounds
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Power "Wrench" on Wheels Opens Car Hoppers Power "Wrench" on Wheels Opens Car Hoppers
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Bumper on Bomber Fends Off Balloon Cables Bumper on Bomber Fends Off Balloon Cables
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If the Air Raid Siren Shrieks If the Air Raid Siren Shrieks
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Super Mercury Lamp for Industry Speeds Defense Production Super Mercury Lamp for Industry Speeds Defense Production
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4.7 Inch Antiaircraft Shell Soars Beyond 30,000-Foot Height
4.7 Inch Antiaircraft Shell Soars Beyond 30,000-Foot Height
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Mobile "Catastrophe Hospital" Handles Major Operations Mobile "Catastrophe Hospital" Handles Major Operations
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American Bomber's Power Dive Hits 560 Miles an Hour American Bomber's Power Dive Hits 560 Miles an Hour
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Airport on Stilts Would Roof Over City Park Airport on Stilts Would Roof Over City Park
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Sirens Perched on Traffic Signals Scream Blackout Warning Sirens Perched on Traffic Signals Scream Blackout Warning
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Busy Little Men Do Big Job in Close Quarters Busy Little Men Do Big Job in Close Quarters
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Air-Raid and Rescue Truck Guards Building Air-Raid and Rescue Truck Guards Building
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Homemade Plane-spotting "Ear" Built of Low-Cost Parts Homemade Plane-spotting "Ear" Built of Low-Cost Parts
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Rubberized Lifesaving Suit Keeps Man Dry, Warm Rubberized Lifesaving Suit Keeps Man Dry, Warm
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"Vegetable Ivory" Seen as Wartime Source of Material for Buttons
"Vegetable Ivory" Seen as Wartime Source of Material for Buttons
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"Halifax" Bomber Carries an Enormous Load "Halifax" Bomber Carries an Enormous Load
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La puissance des flottes de combat La puissance des flottes de combat
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La Science et la Vie, VII, n.20, 1915 (Avril-Mai)
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German howitzer Chronologie des faits de guerre sur tous les fronts
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Trench building Comment on construit les tranchées, comment on les aménage, comment on y vit
