Search Results for: Animal bristles
(class / ) cellular material derived from plant or animal source (e.g., wood, cotton, wool, leather, etc.) (class / ) polymer or resin containing (i.e., natural or synthetic) (class / ) spirally flat-wound strand or strip (e.g., braided rug, etc.)
(class / ) of quartz or glass (class / ) of asbestos (class / ) of silicon containing (not as silicon alloy) (class / ) of cork (class / ) of metal (class / ) of animal membrane or skin (class / ) of polyimide (class / ) of polyamide (class / ) of polyester (e.g., alkyd, etc.)...
https://patents.justia.com/patents-by-us-classification/428