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On Cobb Island Road (SR 254) at Potomac River Drive on Cobb Island Road (SR 254).
Here on Cobb Island, in December 1900, Reginald Aubrey Fessenden, assisted by Frank W. Very, while experimenting in wireless telephony, for the first time sent and received intelligible speech by electromagnetic waves between two masts 50 feet high . . . — — Map (db m81199) HM
On Neale Sound Drive at Cobb Island Road on Neale Sound Drive.
On December 23, 1900, Reginald Fessenden made the first wireless transmission of human speech; that memorable event took place right here on Cobb Island, Maryland.
While Marconi is credited with the invention of the wireless telegraph, it was . . . — — Map (db m129054) HM
On Neale Sound Drive at Cypress Drive on Neale Sound Drive.
On December 23, 1900, Reginald Fessenden made the first wireless transmission of human speech between two sets of 50-foot masts erected along the shore of Cobb Island. The message ("Hello. One, two, three, four. Is it snowing where you are Mr. . . . — — Map (db m129090) HM
On Neale Sound Drive at Audrey Road on Neale Sound Drive.
On December 23, 1900, Reginald Fessenden made the first wireless transmission of human speech between two sets of 50-foot masts erected along the shore of Cobb Island. The above message was immediately received by his assistant Alfred Thiessen. . . . — — Map (db m245531) HM