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1 to 12 of 358 results for telephone
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American (68)
Western Electric Company (50)
Jefferson Physical Laboratory, Harvard University (41)
Department of Physics, Harvard University (28)
American Telephone and Telegraph Company (14)
Alexander Graham Bell (11)
De Forest Radio Telephone & Telegraph Company (10)
Cruft Laboratory, Harvard University (9)
General Radio Company (8)
Louis-Clément Breguet (8)
Thomas Alva Edison (8)
Edwin H. Land (7)
General Electric Company (7)
J. H. Bunnell & Company (7)
Breguet (6)
Clement Ader (6)
George Phelps (6)
Psycho-Acoustic Laboratory, Harvard University (6)
Radio Corporation of America (6)
Stanley Smith Stevens (6)
Theodore William Richards (6)
American Telegraphone Company (5)
Bell Telephone Laboratories (5)
Department of Physics, Bowdoin College (5)
French (5)
National Bell Telephone Company (5)
Société Générale des Téléphones (5)
Stromberg-Carlson Company (5)
U.S. Army, Signal Corps (5)
Western Union Company (5)
Breguet FT (4)
Columbia Phonograph Company (4)
Electro-Acoustic Laboratory, Harvard University (4)
Harvard University (4)
L. M. Ericsson (4)
Maison Breguet (4)
Olympus (4)
Permoflux Corporation (4)
Rudolph Koenig (4)
S. H. Couch Company (4)
Aerovox Corporation (3)
Couch & Seeley Company (3)
F. A. D. Andrea, Inc. (3)
Fritz Köhler (3)
Harvard College Observatory (3)
Henry Hunnings (3)
Polaroid Corporation (3)
Robert G. Brown (3)
U.S. Phonograph Company (3)
United States Navy (3)

Classification / Category

Telephone (108)
Telegraph Relay (36)
Telegraph Receiver (18)
Microphone (14)
Radio Broadcast Receiver (14)
Speaker (13)
Telegraph (9)
Telegraph Equipment (8)
Radio Receiver (7)
Telegraph Key (7)
Telegraph Transmitter (7)
Vacuum Tube (7)
Headphones (6)
Insulator (6)
Recorder (6)
Telegraph Cable (6)
Phonograph Records (5)
Relay (5)
Radio (4)
Radio Amplifier (4)
Radio Transmitter (4)
Automatic dialer (3)
Radio Detector (3)
Telephone Equipment (3)
Transcriber (3)
Battery (2)
Cable (2)
Coherer (2)
Communications Device (2)
Detector (2)
Nernst's apparatus (2)
Phonograph (2)
Photomultiplier Tube (2)
Plaque (2)
Power Supply (2)
Radio Power Supply (2)
Rectifier (2)
Slide Rule (2)
Television Receiver (2)
Tone Arm (2)
Tuning Fork Stand (2)
Typewriter (2)
Variometer (2)
Antenna (1)
Battery Charger (1)
Betamax Video Recorder (1)
Cables (1)
Carbon Buttons (1)
Case (1)
Condenser Kit (1)

Collections

radio (55)
Exhibit 2005--CHSI's Putnam Gallery (5)
Exhibit 2015_Case for Curiosity (2)
Charrette Corporation and Lionel Spiro (1)

Date

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De Forest type R-J variometer

De Forest type R-J variometer

De Forest Radio Telephone & Telegraph Company
1909
telephone receiver "POUR LA FRANCE" (mouthpiece?)

telephone receiver "POUR LA FRANCE" (mouthpiece?)

Telephone Bell
circa 1880
Eveready "Long Life" telephone battery

Eveready "Long Life" telephone battery

Union Carbide and Carbon Corporation
circa 1950
stand for a tuning fork used in telephone experiments

stand for a tuning fork used in telephone experiments

Rudolph Koenig
circa 1889
Système D'Arsonval telephone receiver

Système D'Arsonval telephone receiver

Branville & Cie
circa 1880
musical telephone receiver of the type designed by Philipp Reis

musical telephone receiver of the type designed by Philipp Reis

Rudolph Koenig
circa 1863
Western Electric rotary dial desk telephone

Western Electric rotary dial desk telephone

Western Electric Company
circa 1965
unknown mechanical telephones

unknown mechanical telephones

American
late 19th-early 20th Century
Bell Hunnings-Cone house telephone transmitter

Bell Hunnings-Cone house telephone transmitter

Henry Hunnings
circa 1892
Federal Telephone & Telegraph transmitter

Federal Telephone & Telegraph transmitter

Federal Telegraph Company
circa 1900
Dunand's telephone receiver

Dunand's telephone receiver

A. Dunand
circa 1878
Bell speaking telephone receiver/ transmitter

Bell speaking telephone receiver/ transmitter

Jefferson Physical Laboratory, Harvard University
circa 1877
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The Collection of Historical Scientific Instruments
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