Title:
Wave transmission and shaping
Document Type and Number:
United States Patent 2273193

Inventors:
Helsing, Raymond A.
Publication Date:
02/17/1942
View Patent Images:
Images are available in PDF form when logged in. To view PDFs, Login  or  Create Account (Free!)
Referenced by:
View patents that cite this patent
Export Citation:
Click for automatic bibliography generation
Assignee:
BELL TELEPHONE LABOR INC
Primary Class:
178/66.100
International Classes:
F23K3/00; G01S7/34; H03G5/26; H03K9/04; H04J3/10; G01S7/285; H03G5/16; H03K9/00; H04J3/02




<- Previous Patent (Friction shock absor...)   |   Next Patent (Gas cleaning) ->