Simulated fire apparatus wherein a gas or electrically operated flame portrayer is adjusted to vary the type of flame portrayed. Such adjustments are coordinated with adjustments in sound effects produced by a speaker.
申请公布号
US3723046(A)
申请公布日期
1973.03.27
申请号
USD3723046
申请日期
1971.10.26
申请人
DEPT OF PHYSICS AND ASTRONOMY UNIVERSITY OF TOLEDO,US
