The Panama Pacific International Exposition 1915

OFFICIAL CLASSIFICATION Class 328. Enamels applied to ceramics. Class 329. Borders for fireplaces and mantels. GROUP 67 PLUMBING AND SANITARY MATERIALS Class 330. Sanitary earthenware; bathing apparatus and attachments, lavatory fittings, laundry tubs, basins, cocks, draws, etc.; sewerage appar- atus, plumbers’ appliances. GROUP 68 GLASS AND CRYSTAL (Raw Materials, Equipment, Processes and Products.) Class 331. Raw materials and particularly chemical products used in the manu- facture of glass. Class 332. Equipment and processes used in the manufacture of glass and crys- tal; equipment for the preparation of raw materials; furnaces; blowing apparatus; moulds; lathes for engraving and shaping; ap- paratus for cutting and for casting, etc. Class 333. Window glass, white or colored, fluted, curved, enameled, etc. Glass for photography. Class 334. Plate glass, rough or polished. Silvered glass. Glass for pavements. Mirrors for projections. Glass with surface in relief. Class 335. Table glass; glass crystal, white or colored, cut or engraved; glassware and glass apparatus for scientific uses. Class 336. Ornamental glass. Fused quartz products. Class 337. Bottles. Class 338. Enamels; their application to glass. Class 339. Mosaics of glass. (Architectural mosaics excepted.) Class 340. Imitation of precious stones. Class 341. Watch glasses. Class 342. Glass used for optical purposes; spectacle glass. Lens grinding ma- chinery. GROUP 69 APPARATUS AND PROCESSES FOR HEATING AND VENTILATION Class 343. Plans and models showing methods of heating buildings, includ- ing public buildings, factories, dwelling houses. Plans and mod- els for sanitation and ventilation of kitchens and small living rooms. Class 344. Methods of conveying and distributing steam, hot water and hot air, used separately or in combination. Class 345. Plans, methods and equipment for natural ventilation; ventilation by exhaustion; up-draft ventilators; ventilators operated by wind or by difference of temperature; ventilation by mechanical means and their combination. [ 32 ]