Title:
Apparatus for photoelectrically sensing message records
United States Patent 2762931


Inventors:
Schewe, Lawrence J.
Application Number:
US34003053A
Publication Date:
09/11/1956
Filing Date:
03/03/1953
Assignee:
TELETYPE CORP
Primary Class:
Other Classes:
178/17A, 178/112, 235/458, 250/229
International Classes:
H04L17/14
View Patent Images:
US Patent References:
2273909Printing telegraph apparatus1942-02-24
2173164Signaling apparatus1939-09-19