CA405345A - Microphone - Google Patents

Microphone

Info

Publication number: CA405345A
Authority: CA; Canada
Prior art keywords: microphone
Prior art date: 1942-06-09
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

CA405345A

Other languages

English (en)

Inventor

Ethelbert William

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.)

Siemens Brothers and Co Ltd

Original Assignee

Siemens Brothers and Co Ltd

Publication date

1942-06-09

1942-06-09 Application granted granted Critical

1942-06-09 Publication of CA405345A publication Critical patent/CA405345A/fr

Status Expired legal-status Critical Current

Links

CA405345A Microphone Expired CA405345A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA405345T

Publications (1)

Publication Number	Publication Date
CA405345A true CA405345A (fr)	1942-06-09

Family

ID=35416644

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA405345A Expired CA405345A (fr)			Microphone

Country Status (1)

Country	Link
CA (1)	CA405345A (fr)

0
- CA CA405345A patent/CA405345A/fr not_active Expired

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