Invalid walkers; walking frames; wheeled trolleys adapted for use as walking aids; chairs especially made for medical use; contoured cushions for patients' use on chairs (adapted for medical purposes); commodes; shaped padding for use with wheelchairs; support devices enabling disabled persons to use baths; support devices enabling disabled persons to use toilets; support devices enabling disabled persons to use wash basins; body supports; apparatus for the moving of patients; apparatus for orthopaedic purposes