Draw-over vapourizer for Penthrane methoxyflurane anaesthetic agent
1968-1980
Collection of material relating to dental anaesthesia, 1965-1980, compiled by Wilfred A. Allen, senior dental officer for the Calderdale Community Dental Service
1968-1980
1968-1980
1950-1970
1960-1975
1975-1980
1978-1982