Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
Examiner
active
No affiliations
Catalyst composition for water blown, low density, rigid...
Composition for polyurethane foam and polyurethane foam...
Expanded and extruded biodegradable and reduced emission...
Process for making visco-elastic foams
Size-selective hemoperfusion polymeric adsorbents
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