Bell Canada Alexander Graham Bell, providing stovepipe wire with which Bell conducted his early telephone experiments from his father's home in Tutelo Heights, Ontario, and also building some 2,398 telephones to Bell's specifications for the Canadian market until James Cowherd's untimely death from tuberculosis in 1881. With a government-granted monopoly on Canadian long-distance telephone service, The Bell Telephone Company of Canada was serving 237,000 subscribers by 1914. Since its early years The Bell Telephone Company of Canada, Ltd. had been known colloquially as "The Bell" or "Bell Telephone". On March 7, 1968, Canadian federal legislation renamed The Bell Telephone Company of Canada,
Alexander Graham Bell 1876, Bell focused on improving the electromagnetic telephone and never used Gray's liquid transmitter in public demonstrations or commercial use. The question of priority for the variable resistance feature of the telephone was raised by the examiner before he approved Bell's patent application. He told Bell that his claim for the variable resistance feature was also described in Gray's caveat. Bell pointed to a variable resistance device in Bell's previous application in which Bell described a cup of mercury, not water. Bell had filed the mercury application at the patent office a year earlier on February 25, 1875, long before