Axially protected test strips

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1987-06-29

1988-09-27

Castel, Benoit

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Calorimeter

422 57, 422 58, G01N 3122

Patent

active

047740540

ABSTRACT:
Test devices are disclosed in which the reagent matrix area(s) attached to a substrate are protected axially in the direction of the elongated substrate by a sloping surface(s) adjacent to each matrix area extending to the identical height of the matrix material. The resulting surface(s) protects said matrices from damage, particularly during wiping operations during which excess liquid and/or material is removed from the matrices.

REFERENCES:
patent: 3443903 (1969-05-01), Haack et al.
patent: 3509872 (1970-05-01), Truhan
patent: 3809617 (1974-05-01), Schmitt
patent: 4230757 (1980-10-01), Toner
patent: 4260392 (1981-04-01), Lee
patent: 4420353 (1983-12-01), Levine

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