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3566528
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Patent number 3,566,528
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Issue date Mar 2, 1971
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F42 - AMMUNITION BLASTING
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3229583
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Patent number 3,229,583
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Issue date Jan 18, 1966
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F42 - AMMUNITION BLASTING
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2089219
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Patent number 2,089,219
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Issue date Aug 10, 1937
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F42 - AMMUNITION BLASTING
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2036292
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Patent number 2,036,292
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Issue date Apr 7, 1936
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F42 - AMMUNITION BLASTING