Test device with novel control symbolism

Details Test device with novel control symbolism Test device with novel control symbolism

G - Physics

01

N

167/44

G01N 33/543 (2006.01)

Patent

CA 2030450

TEST DEVICE WITH NOVEL CONTROL SYMBOLISM ABSTRACT There are described assay devices having a control surface on which controls are deposited to produce a representational symbol that preferably indicates a satisfactory test procedure, or a failure in the test procedure. In one aspect of the invention, the symbol comprises exclusively the positive control areas and the negative control area, so that the negative control area will convert the "satisfactory" symbolism into "unsatisfactory" symbolism. In another aspect, the symbols that are formed are "OK" and, respectively.

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