A revolving fan appliance for dental engines
By: [Fred Whit Gould]
Contributors: Read, Lawrence, inventor; E. P. Alexander & Son
Publisher: Printed for Her Majesty's Stationery Office by Malcomson & Co., Ltd
Place of publication: Redhill
Language: eng
Notes: Patent specification.

Contains both the provisional and the complete specification.

Patent reference : 1898/11495.