A. P. Halliday and Co
of 6 Bank Place, Salford, Manchester
1849 Henry Davis Pochin joined James Woolley and Mr Halliday in the partnership
1851 A. P. Halliday was an inventor who exhibited at the Great Exhibition
1853 Halliday died
1855 Patent to Henry Davis Pochin, of Salford, of the firm of Halliday, Pochin, and Co., Manufacturing Chemists, for the invention of "improvements in the treatment of certain compounds of alumina, and the application of the same in printing, dyeing, tawing, paper making, and such like purposes."
1858 After Wooley’s death, Pochin continued as sole partner.
Pochin's business was later called H. D. Pochin and Co