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Displaying records 1 to 14 (of 14)
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Patent #:159524     Read More
Inventor:Borzo, Karel
Invention:Motor Controller
Location:Calgary
Date:15/12/14
Category:Sound Communication Equipment
  
Patent #:530667     Read More
Inventor:Carlson, Carl V.
Invention:Volume Range Compression Amplifier Circuit
Location:Calgary
Date:25/09/56
Category:Sound Communication Equipment
  
Patent #:274327     Read More
Inventor:Davidson, Alexander Roy
Invention:Phonograph Record Rotating Mechanism
Location:Edmonton
Date:04/10/27
Category:Sound Communication Equipment
Comments:see Edmonton Journal, April 29, 1930; b Scotland; came to Canada age 17; 1882 came west as member of RNWMP; m Isabella Fraser; homesteaded in Calder after 1890
  
Patent #:601734     Read More
Inventor:Graham, Robert
Invention:Continuous Recorder
Location:Bowness
Date:12/07/60
Category:Sound Communication Equipment
  
Patent #:623869     Read More
Inventor:Graham, Robert
Invention:Recording Devices
Location:Bowness
Date:18/07/61
Category:Sound Communication Equipment
  
Patent #:157013     Read More
Inventor:Harbeke, Louis N.
Invention:Gramophone Mechanism
Location:Macleod
Date:21/07/14
Category:Sound Communication Equipment
  
Patent #:689068     Read More
Inventor:Kostyk, Allen F.
Invention:Sound Producing Apparatus for Toys and the Like
Location:Edmonton
Date:23/06/64
Category:Sound Communication Equipment; 8: Toy
  
Patent #:288381     Read More
Inventor:Laing, George
Invention:Musical Instrument Device
Location:Calgary
Date:02/04/29
Category:Sound Communication Equipment
  
Patent #:198971     Read More
Inventor:Masse, Thomas J.
Invention:Indicator for Spring Motors
Location:Edmonton
Date:06/04/20
Category:Sound Communication Equipment
  
Patent #:531648     Read More
Inventor:Melnychuk, Nick G.
Invention:Audio Speed Warning Device
Location:Beverly
Date:16/10/56
Category:Sound Communication Equipment
  
Patent #:601734     Read More
Inventor:Precision Oilfield Services Ltd.
Invention:Continuous Recorder
Location:Edmonton
Date:12/07/60
Category:Sound Communication Equipment
  
Patent #:531648     Read More
Inventor:Randall, Lloyd W.
Invention:Audio Speed Warning Device
Location:Sedgewick
Date:16/10/56
Category:Sound Communication Equipment
  
Patent #:303779     Read More
Inventor:Stevens, Robert Herbert
Invention:Apparatus for the Filtration of Radio Wave Signals
Location:Edmonton
Date:09/09/30
Category:Sound Communication Equipment
  
Patent #:657870     Read More
Inventor:Watson, Richard
Invention:Telephone Dial Insert
Location:Calgary
Date:19/02/63
Category:Sound Communication Equipment
  

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