83709 ⎘
Treating materials to adapt them specially as upholstery filling Preparation of bed feathers from natural feathers
Sub-classes:THERMALLY INSULATING SHEET FORMED FROM A DOWN CORE STRUCTURE AND METHOD OF FABRICATION
#2Method and apparatus for forming a down feather sheet by heat injection
#3Thermally insulating sheet formed from a down core structure and method of fabrication
#4Down-fill pillow construction
#5Thermally insulating stretchable down feather sheet and method of fabrication
#6Method for decomposing an allergen
#7Allergen Decomposer and Antiallergenic Feathers