00384nam a2200169Ia 4500 2208 Ost 20260507154658.0 251113s9999||||xx |||||||||||||| ||eng|| nitttr eng 621.38132 D63M Dix, C.H. Microwave valves. / Dix, C.H., Aldous, W. H. Aldous, W. H. BK 2105 2105 0 0 0 0 NITTTR NITTTR 2026-05-07 0 621.38132 D63M 2017 2026-05-07 15:46:58 2026-05-07 BK