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3213810
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Patent number 3,213,810
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Issue date Oct 26, 1965
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F42 - AMMUNITION BLASTING
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3104588
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Patent number 3,104,588
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Issue date Sep 24, 1963
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F41 - WEAPONS
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2099993
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Patent number 2,099,993
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Issue date Nov 23, 1937
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F42 - AMMUNITION BLASTING
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1554830
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Patent number 1,554,830
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Issue date Sep 22, 1925
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F41 - WEAPONS