Airborne electromagnetic prospecting method and apparatus
NL163882B
A PROCESS FOR IMPROVING THE ELECTROPHOTOGRAPHIC PROPERTIES OF PHOTOGRAPHIC ZINC OXIDE POWDER, AND A METHOD FOR MANUFACTURING SENSITIZED MATERIAL CONTAINING SUCH Zinc Oxide Powder.
CA941446A
Electromagnetic prospecting method and apparatus
CA874814A
Extensible belt conveyor
US2784370A
Geophysical prospecting
GB673621A
Selective flotation of zinc sulphide
US2602775A
Electrodeposition of zinc
US2636817A
Method of decreasing dross formation in the melting of zinc
US2595076A
Selective flotation of zinc
US2602776A
Electrolytic method of winning zinc
US2544301A
Agitation of pulps and the like
GB639685A
Process for removing cobalt from zinc electrolytes
GB633468A
Improvements in or relating to the electrodeposition of zinc, and anodes for use therein
US2503479A
Removal of impurities from zinc electrolyte solutions
GB624317A
Activated zinc dust for gold and silver precipitation
US2477443A
Activated zinc dust for gold and silver precipitation