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Application filed by Emanuel LabhardtfiledCriticalEmanuel Labhardt
Publication of CH6961ApublicationCriticalpatent/CH6961A/en
Improved Manufacture of Metallic Packing for the Flange Joints of Tubes, Cylinder Covers of Steam Engines, Manhole Covers, and the like, and New Bimetallic Rods intended for the Manufacture of such Packings.