title: Electronic timer for developing rooms and physiotherapy.
authors.forename: E G
authors.initials: EG
authors.lastname: ESCHNER
authors.forename: B R
authors.initials: BR
authors.lastname: STEPHENSON
mesh_terms: D026741:Physical Therapy Modalities; D010810:Physical and Rehabilitation Medicine; D014962:X-Ray Film; D014965:X-Rays