CA266539A - Loud speaking telephone - Google Patents

Loud speaking telephone

Info

Publication number
CA266539A
CA266539A CA266539A CA266539DA CA266539A CA 266539 A CA266539 A CA 266539A CA 266539 A CA266539 A CA 266539A CA 266539D A CA266539D A CA 266539DA CA 266539 A CA266539 A CA 266539A
Authority
CA
Canada
Prior art keywords
loud speaking
speaking telephone
telephone
loud
speaking
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
CA266539A
Other languages
French (fr)
Inventor
C. Hopkins Marcus
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.)
HOPKINS Corp
Original Assignee
HOPKINS Corp
Publication date
Application granted granted Critical
Publication of CA266539A publication Critical patent/CA266539A/en
Expired legal-status Critical Current

Links

CA266539A Loud speaking telephone Expired CA266539A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA266539T

Publications (1)

Publication Number Publication Date
CA266539A true CA266539A (en) 1926-12-07

Family

ID=35194494

Family Applications (1)

Application Number Title Priority Date Filing Date
CA266539A Expired CA266539A (en) Loud speaking telephone

Country Status (1)

Country Link
CA (1) CA266539A (en)

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