CA242636A - Microphone - Google Patents

Microphone

Info

Publication number
CA242636A
CA242636A CA242636A CA242636DA CA242636A CA 242636 A CA242636 A CA 242636A CA 242636 A CA242636 A CA 242636A CA 242636D A CA242636D A CA 242636DA CA 242636 A CA242636 A CA 242636A
Authority
CA
Canada
Prior art keywords
microphone
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
CA242636A
Other languages
English (en)
Inventor
Willard Case Theodore
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.)
CASE RESEARCH LABORATORY Inc
Original Assignee
CASE RESEARCH LABORATORY Inc
Publication date
Application granted granted Critical
Publication of CA242636A publication Critical patent/CA242636A/fr
Expired legal-status Critical Current

Links

CA242636A Microphone Expired CA242636A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA242636T

Publications (1)

Publication Number Publication Date
CA242636A true CA242636A (fr) 1924-09-02

Family

ID=35146666

Family Applications (1)

Application Number Title Priority Date Filing Date
CA242636A Expired CA242636A (fr) Microphone

Country Status (1)

Country Link
CA (1) CA242636A (fr)

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