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CA154014A
|
|
Zinc production process
|
|
GB191209612A
|
|
Electrolytic Process.
|
|
GB190400771A
|
|
Improvements in Power Transmitting and Speed Changing Mechanism.
|
|
CA86819A
|
|
Speed changing mechanism
|
|
US690770A
|
|
Galvanic battery or pile.
|
|
GB189904632A
|
|
Improvements relating to the Operation of Electric Motors at Different Speeds.
|
|
GB189904633A
|
|
Improvement in Method of and Means for Operating Electric motors.
|
|
US668215A
|
|
Galvanic-battery electrode.
|
|
GB189510587A
|
|
Improvements in and relating to Electric Heaters.
|
|
GB189505269A
|
|
Improvements in Mechanism for Forming Battery Plates.
|
|
GB189323897A
|
|
Improvements relating to Electric Signalling or the Transmission of Information and Energy by Electricity, and to Apparatus therefor.
|
|
CA47827A
|
|
System of telegraphy
|
|
CA47826A
|
|
Magneto-electric inductive apparatus
|
|
CA41677A
|
|
Separator for ore
|
