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All Makers S-Z

Sangamo Electric Company of Canada	Capacitor Meter, watt-hour Motor Radiosonde
Sarco Canada Ltd.
Carl Gustav Schulze
SCI-TEC Instruments Ltd.
Scintrex	Resistivity & self potential unit
SED Systems Ltd.	Antenna Receiver, satellite signal Receiver, satellite signal Antenna
Semco Instruments Co. Ltd.	Microscope Rack, interface Rack, interface Rack, interface
Seth Thomas Clocks Canada
Charles Sewell
Scintrex	Gravimeter Projector Bracket, mounting Projector part
Simtec Ltd.
Small Electric Motors (Canada) Ltd.
Smith Bros. Jewellers Ltd.
W. Sodin Gravity Ltd.
Sola Electric (Canada) Ltd.
Solus X-Ray Company
Sopwith Engineering Laboratories, Hawker Siddley Canada Ltd.
Southwestern Industrial Electronics (Canada) Ltd.
SPAR Aerospace	Gear Gear Disc Bushing
Sparling Sales Ltd.
Sparton of Canada Ltd.	Turntable Receiver, radio Receiver, radio Receiver, television
Sperry Gyroscope Co. of Canada Ltd.	Compass, gyro Board, circuit Board, circuit Board, circuit
Sperry Gyroscope Ottawa Ltd.
O. St. Amant
Stanley Manufacturing Co. Ltd.	Gauge, marking Plane Plane Square
Stark Electronic Instruments Ltd.	Test set, vacuum tube Test set, radio circuit Test set, radio circuit Voltmeter
John Starr	Lamp bulb, incandescent Receiver, radio
James Stevenson & Co. Ltd.
George F. Stickney
Strand Electric Co.	Power supply Control unit Control console Control unit
Henry Swinburne
Swiss Instruments Ltd.
T. & H. Controls Ltd.
Thomas W. Anderson
Tachograph Sales & Service Co.
Tagliabue Ltd.
Taylor Instrument Companies of Canada Ltd.	Valve Valve Valve
Technical Service Laboratories
Telesat Canada	Vacuum tube Mirror Mirror Mirror
Tellurometer Canada Ltd.	Tellurometer Tellurometer
Temple Radio Specialities
Testing Machines International of Canada Ltd.
Texas Instruments Inc.
Thermo Electric (Canada) Ltd.
Thermovolt Instruments Co. Ltd.
Thomas Shaw
Thomas B. Timson
H. Tinsley & Co.	Potentiometer Galvanometer Galvanometer Galvanometer
The Topley Company
Topping Electronics Ltd.
Tork Controls of Canada Ltd.
	Motion machine, continuous passive Motor
Toronto Electric Light Co.
The Toronto Electrical Works
Tri-Tel Associates Ltd.
G.S. Trudell & Co. Importers	Chamber, aerosol holding Chamber, aerosol holding
Trudell Medical International
Cornelius Tully
Twiss Brothers
Ultinet
Cossor (Canada) Ltd.
Union Carbide Canada Ltd., Linde Gases Division	Battery Battery Tub, cottage cheese Battery
Utah-Carter Radio Co. Ltd.
Vancouver Scale & Butcher Supply Co. Ltd.
W.H. Vantassel
Varian Associates of Canada Ltd.	Klystron Horizon, artificial Klystron Amplifier
Vector Labs Inc.
Veeder-Root of Canada Ltd.
Vickers Instruments Ltd.	Ship model Airplane Ship model
W. & E. Trading Co.
W. Hobson & Associates
Wagner Electric Manufacturing Co. of Canada Ltd.	Motor
Wallace & Tiernan Ltd.
G.P. & D.H. Warren
Wave Precision
J. Wescott & Co.
The Western Clock Company	Clock Clock
Western Drafting & Blueprinting Co.
Western Research and Development
George Westphal Co. of Canada Ltd.	Balance Balance
William Fitzwilliam Owen
White X-Ray & Surgical Supply Co.
John Whitehouse
A.C. Wickman Ltd.
Wild of Canada Ltd.
William Bell
William Black
William Hearn
William Kennedy & Sons
Wilson Scale & Machinery Corp. Ltd.
Wilson Science Co. Ltd.
A.H. Winter Joyner	Lamp, electric
Wright Radio	Receiver, radio
Carl Zeiss, Canada, Ltd.