CA259441A - Dispositif d'acoustique - Google Patents

Dispositif d'acoustique

Info

Publication number
CA259441A
CA259441A CA259441A CA259441DA CA259441A CA 259441 A CA259441 A CA 259441A CA 259441 A CA259441 A CA 259441A CA 259441D A CA259441D A CA 259441DA CA 259441 A CA259441 A CA 259441A
Authority
CA
Canada
Prior art keywords
acoustc
acoustc device
Prior art date
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.)
Expired
Application number
CA259441A
Other languages
English (en)
Inventor
Alphonsus Heising Raymond
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.)
INTERNATIONAL WESTERN ELECTRIC Co
AT&T Corp
Original Assignee
INTERNATIONAL WESTERN ELECTRIC Co
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA259441A publication Critical patent/CA259441A/fr
Expired legal-status Critical Current

Links

CA259441A Dispositif d'acoustique Expired CA259441A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA259441T

Publications (1)

Publication Number Publication Date
CA259441A true CA259441A (fr) 1926-03-30

Family

ID=35167989

Family Applications (1)

Application Number Title Priority Date Filing Date
CA259441A Expired CA259441A (fr) Dispositif d'acoustique

Country Status (1)

Country Link
CA (1) CA259441A (fr)

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