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Marksmanship expert trainer
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Patent number 4,923,402
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Issue date May 8, 1990
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The United States of America as represented by the Secretary of the Navy
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Albert H. Marshall
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F41 - WEAPONS
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Anti-armor weapons trainer
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Patent number 4,439,156
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Issue date Mar 27, 1984
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The United States of America as represented by the Secretary of the Navy
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Albert H. Marshall
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F41 - WEAPONS
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Electro-optic infantry weapons trainer
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Patent number 4,336,018
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Issue date Jun 22, 1982
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The United States of America as represented by the Secretary of the Navy
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Albert H. Marshall
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F41 - WEAPONS
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Thermal signature targets
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Patent number 4,240,212
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Issue date Dec 23, 1980
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The United States of America as represented by the Secretary of the Navy
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Albert H. Marshall
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F41 - WEAPONS