Courvoisier & Wilcox Mfg. Co. Case Trademark Trademark Manufacturer: Courvoisier & Wilcox Mfg. Co. Manufacturer Years Active: 1883 - 1905 Trademark Markings: [SX] Trademark Issued: July 15, 1890 Other Courvoisier & Wilcox Mfg. Co. Trademarks