1
Improvements in laryngoscopes and the like. Robert Schranz, June 30, 1932: GB375491-A (5 worldwide citation)

375,491. Lamps for laryngoscopes. SCHRANZ, R., 28A, Devonshire Street. London. May 9, 1931, No. 13773. [Class 75 (iv).] A light-projecting unit for illuminating the distal end of a laryngoscope comprises a pair of projectors 1 adapted for insertion in housings 3 situated alongside the body 2 of the ...


2
Improvements in laryngoscopes. Louis Van Lier, October 1, 1952: GB680219-A (2 worldwide citation)

680,219. Battery lamps combined with laryngoscopes. LIER, L. VAN. July 26, 1950 [July 26, 1949], No. 19650/49. Class 39(ii) [Also in Group VI] A laryngoscope comprises a handle carrying a head with which a blade is rigidly associated characterized by a light tube comprising a metal tube containing a ...