VACUUM PUMPS, VACUUM VALVES OF BOTH THE HAND-OPERATED AND AIR-OPERATED TYPE USED IN SEALING AND VARIABLE LEAK FUNCTIONS AND ALSO FOR APPLICATION IN VACUUM AND LIQUID LINES IN METALLURGICAL, ELECTRICAL AND CHEMICAL PLANTS

'air':13 'air-oper':12 'also':24 'applic':26 'chemic':36 'electr':34 'function':22 'hand':9 'hand-oper':8 'leak':21 'line':31 'liquid':30 'metallurg':33 'oper':10,14 'plant':37 'pump':2 'seal':18 'type':15 'use':16 'vacuum':1,3,28 'valv':4 'variabl':20

LEAK DETECTORS, [ PHOTO MASKS-NAMELY, TRANSPARENT GLASS PLATES WITH THIN-FILM COATINGS WHICH COVER PART OF THE SENSITIVE SURFACE IN TAKING OR PRINTING A PHOTOGRAPH, ] AND SPUTTERING SYSTEMS CONSISTING OF BOTH SMALL SCALE SPUTTERING UNITS FOR LABORATORY USE AND LARGE PRODUCTION SPUTTERING UNITS WHICH PRODUCE A METALLIC FILM FROM ONE TO THREE LAYERS IN DEPTH BY AN ELECTRIC DISCHARGE IN WHICH POSITIVE GAS IONS BOMBARDING THE CATHODE CAUSE IT TO EJECT ATOMS OF THE CATHODE METAL WITH GREAT SPEED

'atom':74 'bombard':67 'cathod':69,77 'caus':70 'coat':14 'consist':31 'cover':16 'depth':57 'detector':2 'discharg':61 'eject':73 'electr':60 'film':13,50 'gas':65 'glass':8 'great':80 'ion':66 'laboratori':39 'larg':42 'layer':55 'leak':1 'mask':5 'masks-nam':4 'metal':49,78 'name':6 'one':52 'part':17 'photo':3 'photograph':27 'plate':9 'posit':64 'print':25 'produc':47 'product':43 'scale':35 'sensit':20 'small':34 'speed':81 'sputter':29,36,44 'surfac':21 'system':30 'take':23 'thin':12 'thin-film':11 'three':54 'transpar':7 'unit':37,45 'use':40

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