Reel hub for cassette tape
申请公布号:USD291434(S1)
申请号:US06/636561
申请日期:1984.08.01
申请公布日期:1987.08.18
Methods of cutting helical grooves in tubular resistance elements
Improvements in conveyor systems
Improvements in and relating to organotin sulfates and sulfites
Apparatus for false-twisting textile threads
Measuring apparatus for determining the concentration of paramagnetic gases
Improvements in or relating to turbines
Zustellung von Regeneratoren von Industrieöfen
Gasheizbrenner, insbesondere für Heizkessel