United States Patent 2413715
Inventors:
Kemp, Archie R.
Webber, Carroll A.
Publication Date:
01/07/1947
Assignee:
BELL TELEPHONE LABOR INC
Other Classes:
264/171.200, 57/6, 264/DIG.040, 174/113C, 174/69, 264/171.160
International Classes:
H01B13/008; H01B13/00