precious metals and precious metal alloys for jewelry, and electronic industrial applications (non-dental)

'alloy':6 'applic':12 'dental':15 'electron':10 'industri':11 'jewelri':8 'metal':2,5 'non':14 'non-dent':13 'precious':1,4

[ printed circuit boards; ] electrical contacts, slip rings [ and commutators; test sockets for printed circuits and semi-conductors; immersible ultrasonic generatorscomprising, vessels to contain material being processed, ultrasonic transducers and electronic apparatus for driving the ultrasonic transducers to generate ultrasonic waves in the material in the vessel, and ultrasonic transducers for immersion in liquids to generate ultrasonic waves therein upon application of electronic pulses thereto ]

'apparatus':32 'applic':61 'board':3 'circuit':2,14 'commut':9 'conductor':18 'contact':5 'contain':24 'drive':34 'electr':4 'electron':31,63 'generat':39,56 'generatorscompris':21 'immers':19,52 'liquid':54 'materi':25,44 'print':1,13 'process':27 'puls':64 'ring':7 'semi':17 'semi-conductor':16 'slip':6 'socket':11 'test':10 'therein':59 'thereto':65 'transduc':29,37,50 'ultrason':20,28,36,40,49,57 'upon':60 'vessel':22,47 'wave':41,58

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