CA22352A - Telephone circuits and apparatus - Google Patents

Telephone circuits and apparatus

Info

Publication number
CA22352A
CA22352A CA000022352A CA22352DA CA22352A CA 22352 A CA22352 A CA 22352A CA 000022352 A CA000022352 A CA 000022352A CA 22352D A CA22352D A CA 22352DA CA 22352 A CA22352 A CA 22352A
Authority
CA
Canada
Prior art keywords
telephone circuits
telephone
circuits
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
CA000022352A
Other languages
French (fr)
Inventor
Ezra T. Gilliland
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.)
BELL TELEPHONE Co
Original Assignee
BELL TELEPHONE Co
Publication date
Application granted granted Critical
Publication of CA22352A publication Critical patent/CA22352A/en
Expired legal-status Critical Current

Links

CA000022352A Telephone circuits and apparatus Expired CA22352A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA22352T

Publications (1)

Publication Number Publication Date
CA22352A true CA22352A (en) 1885-09-02

Family

ID=45138895

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000022352A Expired CA22352A (en) Telephone circuits and apparatus

Country Status (1)

Country Link
CA (1) CA22352A (en)

Similar Documents

Publication Publication Date Title
CA23005A (en) Telephonic circuit and apparatus
CA21081A (en) Telephone apparatus
CA22475A (en) Telephone circuit
CA25843A (en) Telephone and telegraph circuit
CA26720A (en) Apparatus and circuit for telegraphic purposes
CA21004A (en) Telephone
CA22331A (en) Telephone
CA22082A (en) Telephone
CA22151A (en) Telephone
CA18547A (en) Telegraphic and telephonic apparatus
CA22491A (en) Metallic circuit telephone system
CA23009A (en) Wood-steaming apparatus
CA22945A (en) Support for telegraph and telephone line wires
CA21548A (en) Telephone connection
CA21522A (en) Method and apparatus for telegraphy
CA26438A (en) Combined telegraphic and telephonic circuit
CA22774A (en) Telephone instrument
CA22449A (en) Metallic poles for telegraph lines and other purposes
CA21135A (en) Mechanical telephone
CA22256A (en) Accoustic telephone
CA22661A (en) Telephone switch board
CA21077A (en) Refrigerating and apparatus therefor
CA20913A (en) Cable-railway apparatus
CA23045A (en) Telephony
CA21123A (en) Telephone trumpet