OPTICAL INSTRUMENTS [ AND PARTS THEREOF ]

ACETONES, ACIDS, ALBUMENS, ALKALIES, ALKALOIDS AND THEIR COMPOUNDS, DERIVATIVES, AND SALTS, ALKYL HYDROXIDS, ALUMS, ANTISEPTICS, AMMONIA-COMPOUNDS, AMYLENES, ANILIDS, BENZENE AND DERIVATIVES, CARBINOLS, CRESOLS, CYANOGEN DERIVATIVES, DEODORANTS, DISINFECTANTS, ESTERS, ETHERS, GASES IN SOLUTION, GELATINOIDS, GLUCOSIDS, GLYCERINS, GERMICIDES, HALOGEN DERIVATIVES, COMPOUNDS AND SUBSTITUTION PRODUCTS, KERATINS, KETONES, MERCAPTOLS, METHYL COMPOUNDS, NAPHTHOLS, NITROSITES, NUCLEINS, MEDICINAL OILS...