1
Parker Robert: Digital thermometer and method of manufacture. Robert Parker Research, Townsend and Townsend, January 21, 1975: US3861213 (20 worldwide citation)

A non-breakable digital thermometer and a method for its manufacture are provided. The thermometer comprises a plastic strip, either flexible or rigid, or microencapsulated temperature responsive liquid crystal material in a lateral array of numerical indicia, each index having associated with it li ...


2
Robert Parker: Digital thermometer and method of manufacture. RPR, Townsend and Townsend, June 29, 1976: US03965742 (13 worldwide citation)

A non-breakable digital thermometer and a method for its manufacture are provided. The thermometer comprises a plastic strip, either flexible or rigid, of microencapsulated temperature responsive liquid crystal material in a lateral array of numerical indicia, each index having associated with it li ...


3
Digital thermometer and method of manufacture. Parker Research Robert, June 9, 1976: GB1439161-A (4 worldwide citation)

1439161 Making microcapsules ROBERT PARKER RESEARCH Inc 13 June 1973 [15 June 1972 16 April 1973] 28219/73 Heading B8C [Also in Divisions B2 D1 G1 and G5] In a method for making microencapsulated temperature responsive liquid crystals for digital reading thermometers (see Division G1), acid extracte ...