Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works LtdfiledCriticalMatsushita Electric Works Ltd
Priority to JP7418076ApriorityCriticalpatent/JPS52156676A/en
Publication of JPS52156676ApublicationCriticalpatent/JPS52156676A/en
PURPOSE: To detect breaking oscillations of a test piece and the removal of an oscillation detector itself by providing a switch element, which is made responsive to the attachment and removal of the test piece, to make the switch element coactive.