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Improvements in or connected with hypodermic syringes / [Felix De Backer].
- Backer, Félix de, 1851-1927.
Public Domain Mark
About this work
London : Printed for Her Majesty's Stationery Office by Darling and Son, Ltd, 1894.
2 pages, 1 folded leaf of plates : illustrations
Contains the complete specification
Patent reference : 1894/12192