CA289327A - Dispositif acoustique - Google Patents

Dispositif acoustique

Info

Publication number: CA289327A
Authority: CA; Canada
Prior art keywords: acoustic device; acoustic
Prior art date: 1929-04-30
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

CA289327A

Other languages

English (en)

Inventor

S. Ringel Abraham

P. Minton John

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.)

RCA Corp

Original Assignee

Radio Corporation of America

Publication date

1929-04-30

1929-04-30 Application granted granted Critical

1929-04-30 Publication of CA289327A publication Critical patent/CA289327A/fr

Status Expired legal-status Critical Current

Links

CA289327A Dispositif acoustique Expired CA289327A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA289327T

Publications (1)

Publication Number	Publication Date
CA289327A true CA289327A (fr)	1929-04-30

Family

ID=35226139

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA289327A Expired CA289327A (fr)			Dispositif acoustique

Country Status (1)

Country	Link
CA (1)	CA289327A (fr)

0
- CA CA289327A patent/CA289327A/fr not_active Expired

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