orth. Second, Joining the oute*and inner metallic cases <of safes andchests, by means of the door frame, C, and flanges, b, or their equiva-lents, when said hydraulic cement, in whole or in part, is used asthe insulating medium between said metallic cases.as herein described,and also by means of… … MESSRS. MUNN & CO., PROPRIETORS OF THEScientific American, continue to solicit patents in the UnitedStates and all foreign countries, onthe most reasonable terms. Theyalso attend to various other depart-ments of business pertaining to pat-ents, such as Extensions, Appealsbefore the United…
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