CA423459A - Telephone headset - Google Patents

Telephone headset

Info

Publication number
CA423459A
CA423459A CA423459A CA423459DA CA423459A CA 423459 A CA423459 A CA 423459A CA 423459 A CA423459 A CA 423459A CA 423459D A CA423459D A CA 423459DA CA 423459 A CA423459 A CA 423459A
Authority
CA
Canada
Prior art keywords
telephone headset
headset
telephone
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
CA423459A
Other languages
French (fr)
Inventor
Reynolds Clarke Harry
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
Bell Telephone Laboratories Inc
Publication date
Application granted granted Critical
Publication of CA423459A publication Critical patent/CA423459A/en
Expired legal-status Critical Current

Links

CA423459A Telephone headset Expired CA423459A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA423459T

Publications (1)

Publication Number Publication Date
CA423459A true CA423459A (en) 1944-10-24

Family

ID=35534462

Family Applications (1)

Application Number Title Priority Date Filing Date
CA423459A Expired CA423459A (en) Telephone headset

Country Status (1)

Country Link
CA (1) CA423459A (en)

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