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Method and apparatus for grading non-orienting articles,US Patent 4,645,080
Article Diverter, US Patent 4,595,091
Method for adjusting weight breaks reactive to changes in distribution of object weight, US Patent 4,632,254
Test strip holding and reading mechanism for a meter, US Patent 5,232,668
Meter verification method and apparatus, US Patent 5,284,770
Fused test source, US Patent 7,696,500