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Frederick Mining Controls Proximity Detection/ Collision Avoidance Systems Patents: 7,420,471; 5,939,986; 6,810,353; Patents Pending Safety Products for Mining
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Document Date: 2013-12-10 00:27:50
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File Size: 638,22 KB
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Frederick Mining Controls Proximity Detection/ Collision Avoidance Systems Patents: 7,420,471; 5,939,986; 6,810,353; Patents Pending Safety Products for Mining