Improved mask for use in administering anaesthetics and the like
By: [Johann Heinrich Dräger]
Contributors: Dräger, Alexander Bernhard, inventor; Cruikshank & Fairweather
Publisher: Printed for His Majesty's Stationery Office by Love & Malcomson, Ltd
Place of publication: Redhill
Language: eng
Notes: Patent specification.

Contains both the provisional and the complete specification.

Patent reference : 1904/8098.