AN IMPROVED ROTARY ENGINE. SNEVELY'S ROTARY ENGINE. SNEVELY'S ROTARY ENGINE. AN IMPROVED NUT LOCK. RENNIE'S NUT LOCK. Queer Name for an American War Vessel. Improved Photographic Plates. AN IMPROVED STOCK TETHER. AN IMPROVED BAG HOLDER. AN IMPROVED SUSPENDER BUCKLE. Improved Mail Bags Still Needed. FISCHER'S BAG HOLDER., scientific american, 1888-05-12
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