Patent ID: 7258073

Claim:
A thermometer comprising: a) a base sheet having a top surface and a back surface; b) a first image generating element provided on said base sheet top surface within a first defined region thereon, said first image generating element having a first latent image phase operable at a first temperature and a first visible image phase operable at a second temperature, said second temperature is below said first temperature and whereby subjecting said first image generating element when in said first visible image phase to said first temperature will re-generate said first latent image phase; c) at least a second image generating element provided on said base sheet top surface and within a second defined region thereon, said at least second image generating element having a second latent image phase operable at a third temperature and a second visible image phase operable at a fourth temperature, said fourth temperature is below said third temperature whereby subjecting said at least second image generating element when in said second visible phase to said third temperature will re-generate said second latent image phase; d) said fourth temperature is lower than said second temperature; and e) said first and second visible image phases depicting items of clothing appropriate for said second and fourth temperatures whereby decreasing atmospheric temperatures will cause an increase in the number of said items of clothing to be visible on said base sheet.