An improved apparatus for preserving changeable liquids, also applicable as a hypodermic injector / [Felix De Backer].

Improvements in or connected with hypodermic syringes / [Felix De Backer].

Louis XVII au Cimetière de Ste.-Marguerite : enquètes médicales / docteur Félix de Backer.

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Backer, Félix de, 1851-1927.

Works from the collections

An improved apparatus for preserving changeable liquids, also applicable as a hypodermic injector / [Felix De Backer].

Improvements in or connected with hypodermic syringes / [Felix De Backer].

Louis XVII au Cimetière de Ste.-Marguerite : enquètes médicales / docteur Félix de Backer.