0
What else can I help you with?
When was the fire detector invented?
The ionization type smoke detector was invented in 1931 in Switzerland.
When was the medal detector made?
The metal detector was invented in 1931 by Gerhard Fisher.
When was the metal detector made?
The metal detector was invented in 1931 by Gerhard Fisher.
Who invented the smoke detector?
timothy lunsford
How is a lie detector prepared?
Heart rate
Why was the lie detector invented?
to see if people were lying
When was the inventor of the metal detector born?
the metal detector was invented because people in old days use to use it so they could find stuff in there body I think
When was a motion detector invented?
The first motion detector was invented in the early 1950s by Samuel Bagno. He developed a device that could detect motion using a technology called ultrasonic waves. This early version of a motion detector paved the way for the more advanced versions we use today.
Is it safe for heart patient to pass through the metal detector?
yes
Who invented the explosive vapor detector?
Lorne Elias invented the explosive dectorin 1985 Lorne Elias invented the explosive dectorin 1985
Who invented the lie detector in 1921?
John A. Larson, who was a medical student in California.
When was the first carbon monoxide detector invented?
The first carbon monoxide detector was invented in the 1920s by Dr. Walter Jaeger in Germany. However, widespread use of carbon monoxide detectors in homes didn't occur until much later, in the late 20th century.
