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3521563
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Patent number 3,521,563
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Issue date Jul 21, 1970
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F42 - AMMUNITION BLASTING
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2656792
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Patent number 2,656,792
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Issue date Oct 27, 1953
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F42 - AMMUNITION BLASTING
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2514401
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Patent number 2,514,401
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Issue date Jul 11, 1950
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F42 - AMMUNITION BLASTING
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2487818
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Patent number 2,487,818
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Issue date Nov 15, 1949
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F42 - AMMUNITION BLASTING
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2479861
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Patent number 2,479,861
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Issue date Aug 23, 1949
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F42 - AMMUNITION BLASTING
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2377174
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Patent number 2,377,174
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Issue date May 29, 1945
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F42 - AMMUNITION BLASTING