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.)
LOUIS CHENNEVIERE
RAPHAEL ROBLIN
Original Assignee
LOUIS CHENNEVIERE
RAPHAEL ROBLIN
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 LOUIS CHENNEVIERE, RAPHAEL ROBLINfiledCriticalLOUIS CHENNEVIERE
Application grantedgrantedCritical
Publication of FR497932ApublicationCriticalpatent/FR497932A/fr
G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR497932D1915-04-091915-04-09Périphone: appareil recueillant dans un certain périmètre les bruits non directement perceptibles par l'oreille
ExpiredFR497932A
(fr)