Skin patch test device with peelable label

Claim 1

In a skin patch test device for simultaneously applying to a subject a plurality of skin patch sensitivity tests to various substances, including at least a first strip of sheet material having a pressure sensitive adhesive layer on one face for attachment to the subject''s skin and carrying at spaced locations contactant preparations for contact with the skin of the subject, and a removable imperforate backing strip formed of sheet material overlying said first strip and removably sealed thereto by said pressure sensitive adhesive, whereby removal of the backing strip permits said skin patch test device to be adhesively pressed against the skin of the subject, the improvement comprising: a second pressure sensitive adhesive layer on said backing strip on the surface thereof facing said adhesive layer on said first strip and being removably sealed thereto, and contactant preparation identification indicia carried by both strips at positions corresponding to the contactant preparations, whereby, removal of the backing strip from the contactant preparation carrying strip permits the backing strip to be employed as an adhesively fixable record of test application remote from the subject, while reference to the device on the subject''s skin readily identifies the same contactant preparation at each specific location along the first strip.