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There were dozens of small Rhode Island companies in the 1920's that grew out of the Radio Age. This page is dedicated to the small companies that don't have their own dedicated page.






Click to enlarge
Nicholson File, March 1924


Providence Business Directory, 1902


McGraw Electrical Directory
October, 1909


Radio News, 1925




Radio Industry September, 1925


Radio News, November 1925

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Radio Enginering, March 1926

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Radio Broadcast, February 1926



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Radio Enginering, May 1926




Radio Broadcast, January 1926


Wireless Age, July 1925

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Company Phamplet

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Rhode Island Radio Handbook, 1925

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Rhode Island Radio Handbook, 1925

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Radio Broadcast, 1926

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Radio News, October, 1925

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American Electrician, January, 1903


1908 Collyer Wire Card


Radio World, July, 1922


Radio World, August, 1922


Radio World, August, 1922


Radio World, November, 1926

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Providence News, January 5, 1924


Popular Radio, December 1924



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Ross Wire Ad, Makers of the RASCO Radio Antenna



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Ross Wire Radio Industry September, 1925

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Herman H Sohn & Co, Radio News April, 1922



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Radio Dealer, June, 1922

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American Fabric Co Inc, Radio News, February, 1922


W A Fenner
January, 1915

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The Antenna Insulator Company,
January, 1924

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L S R Electric Mfg Co,
Radio News, 1922



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Bernards Radio Co,
Radio News, August 1925

Click to enlarge
Eastern Electric & Manufacturing Company
Radio Broadcast, January, 1926



PATENTS

Here are radio related patents registered by Rhode Islanders not associated with a Rhode Island company listed elseware on this website.


US1550889
VERNIER TUNING DIAL

US1698650
INDUCTION DEVICE- AND MAGNETIC
CIRCUITS FOR THE SAME

US1916204
INDUCTION COIL FOR RADIO APPARATUS

US1640172
TOROIDAL COIL

US146149
VACUUM TUBE

US1582042
Crystal set built into a headphone

US940746
TELEPHONE SYSTEM

US1047956
SYSTEM FOR AMPLIFYING
ELECTRIC CURRENT VARIATIONS

US1377144
TRANSMITTER

US1047956
INSULATOR

US1582194
DETECTOR

US2474242
ADJUSTABLE ANTENNA

US1564944
ATTACHMENT TERMINAL
AND METHOD OF MAKING SAME

US1580853
COIL MOUNTING

US1694091
SECTIONAL INDUCTION COIL

US1896316
ELECTRIC CONTROLLING APPARATUS

US1828900
ELECTRIC CONTROLLING APPARATUS

US1417007
PROCESS FOR MAKING
ELECTRIC STORAGE BATTERY

US1550744
STATION INDICATION FOR
RADIO RECEIVING SETS

US1553200
RADIOGAME

US1622459
RADIO DETECTOR

US1812299
ELECTRIC CONTROLLING APPARATUS

US1826890
ELECTRIC CONTROLLING APPARATUS