Origin of geophone
Examples from the Web for geophone
Historical Examples of geophone
The geophone expert was at his bedside, waiting impatiently.
There was a tense five minutes as the geophone expert listened.
"That's what the geophone man heard," Owens commented to the reporter.
"The vibrodyne machine isn't running," he remarked finally after repeated adjustments of the geophone.
Nothing at all of any value was being recorded by the geophone when Kennedy glanced quickly at his watch.