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Description: Face mask and regulator from Clover's "Portable Regulating Ether Inhaler", English, 1877-1920 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: inhalers Temporal: 1877-1920 Source: Science Museum Creator: The Holborn Surgical Instrument Company Limited Identifier: A625405 Go to resource More Like this...
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