Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
Inventor
active
C.sub.3 to C.sub.5 polyfluorcalkanes propellants
C.sub.3 to C.sub.5 polyfluorcalkanes propellants
C.sub.3 to C.sub.5 polyfluoroalkanes propellants
Oligourea polyols, polyether polyols produced from them and the
Polyester polyols, a process for their production and their use
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