Skip to main content
profile image
Selected Works of Edmund Wigan
Other
Improvements in or relating to Telephone Instrument Circuits
(1934)
  • Edmund Ramsay Wigan, Siemens
Download
Abstract
UK Patent Application 1933 GB407808A, in the Name of Siemens
Disciplines
Publication Date
Spring March 29, 1934
Citation Information
Edmund Ramsay Wigan. "Improvements in or relating to Telephone Instrument Circuits" (1934)
Available at: http://works.bepress.com/edmund-wigan/33/