Sealing arrangement for an extrusion apparatus
Self-aligned plug connector for optical fibers
Semi-fixed astronomical mirrors and aspherical gratings and meth
Semiconductor light-emitting element
SiC—C/C composite material, uses thereof, and method...
Silicon nitride having a high tensile strength
Sintered silicon nitride-based body and process for producing th
Solar energy concentrator
Submarine optical fiber cable with grooved plastic core and manu
Synthetic fiber forming apparatus for spinning synthetic fibers