CA447611A - Dispositif d'acoustique - Google Patents

Dispositif d'acoustique

Info

Publication number: CA447611A
Authority: CA; Canada
Prior art keywords: acoustic device; acoustic
Prior art date: 1948-03-30
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

CA447611A

Other languages

English (en)

Inventor

Thomson Fisher Sidney

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.)

AT&T Corp

Original Assignee

Western Electric Co Inc

Publication date

1948-03-30

1948-03-30 Application granted granted Critical

1948-03-30 Publication of CA447611A publication Critical patent/CA447611A/fr

Status Expired legal-status Critical Current

Links

CA447611A Dispositif d'acoustique Expired CA447611A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA447611T

Publications (1)

Publication Number	Publication Date
CA447611A true CA447611A (fr)	1948-03-30

Family

ID=35565293

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA447611A Expired CA447611A (fr)			Dispositif d'acoustique

Country Status (1)

Country	Link
CA (1)	CA447611A (fr)

0
- CA CA447611A patent/CA447611A/fr not_active Expired

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