FireDOC Search
Author
Horvath, Z.
|
Purt, G.
Title
Sensing Presence of Fire.
Coporate
Cerberus AG, Mannedorf, Switzerland
Report
U.S. Patent 3,922,656, November 25, 1975, 6 p.
Keywords
sensors
|
photoelectric detectors
|
tests
|
false alarms
Identifiers
light source