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CA161083A
|
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Combustible gaseous mixture
|
|
GB191305236A
|
|
Improvements in Fluid Ejector Apparatus.
|
|
CA149787A
|
|
Method of cleaning metal
|
|
GB191225165A
|
|
Improved Process of and Apparatus for Producing Combustible Gaseous Mixtures.
|
|
GB191225166A
|
|
Improvements in Means for Producing a Combustible Gaseous Mixture more particularly for use in High-speed Internal Combustion Engines.
|
|
GB191223300A
|
|
An Improved Mixture for Coating Metals and Uniting Articles made of Metal.
|
|
US1049603A
|
|
Method of and means for cleaning the surfaces of articles made of silver and other metals.
|
|
US1096127A
|
|
Telephone-receiver.
|
|
GB191123620A
|
|
Improved Means for Simultaneously Recording or Reproducing Sounds and Visible Movements Accompanying such Sounds.
|
|
US1077096A
|
|
Apparatus for use in the treatment of deafness.
|
|
GB191117150A
|
|
Method of and Means for Cleaning the Surfaces of Articles Made of Silver and other Metals.
|
|
GB191113885A
|
|
Improved Means for Supporting a Telephonic Receiver or similar Instrument in Contact with the Ear.
|
|
GB191113884A
|
|
Improvements in or relating to Microphones.
|
|
GB191200600A
|
|
Improvements in Telephone Receivers.
|
|
GB191102612A
|
|
Improved Apparatus for Assisting the Deaf to Hear.
|
|
CA130282A
|
|
Process of and means for electroplating
|
|
US970852A
|
|
Process of and means for depositing metals.
|
|
US1000294A
|
|
Electromagnetic vibrator for local application to the person.
|
|
CA123205A
|
|
Means of affecting the relief of deafness
|
|
US1057279A
|
|
Apparatus for use in the treatment of deafness.
|
