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2504162
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Patent number 2,504,162
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Issue date Apr 18, 1950
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F41 - WEAPONS
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2466174
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Patent number 2,466,174
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F41 - WEAPONS
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1750722
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Patent number 1,750,722
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Issue date Mar 18, 1930
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F41 - WEAPONS
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1734152
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Patent number 1,734,152
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Issue date Nov 5, 1929
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F41 - WEAPONS
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1469663
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Patent number 1,469,663
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Issue date Oct 2, 1923
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F41 - WEAPONS