CA85516A - Signalling and telephoning apparatus - Google Patents

Signalling and telephoning apparatus

Info

Publication number
CA85516A
CA85516A CA000085516A CA85516DA CA85516A CA 85516 A CA85516 A CA 85516A CA 000085516 A CA000085516 A CA 000085516A CA 85516D A CA85516D A CA 85516DA CA 85516 A CA85516 A CA 85516A
Authority
CA
Canada
Prior art keywords
signalling
telephoning
telephoning apparatus
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
CA000085516A
Other languages
French (fr)
Inventor
Edwin Loraine Grauel
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA85516A publication Critical patent/CA85516A/en
Expired legal-status Critical Current

Links

CA000085516A 1903-05-15 1903-05-15 Signalling and telephoning apparatus Expired CA85516A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA85516T 1903-05-15

Publications (1)

Publication Number Publication Date
CA85516A true CA85516A (en) 1904-02-16

Family

ID=45202052

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000085516A Expired CA85516A (en) 1903-05-15 1903-05-15 Signalling and telephoning apparatus

Country Status (1)

Country Link
CA (1) CA85516A (en)

Similar Documents

Publication Publication Date Title
CA85516A (en) Signalling and telephoning apparatus
CA85085A (en) Signalling apparatus
CA85086A (en) Signalling apparatus
CA82538A (en) Signalling and telephoning system for railways
CA89552A (en) Telegraph apparatus
CA88561A (en) Telephonic and telegraphic transmitting apparatus
CA102743A (en) Telegraphic apparatus
CA82547A (en) Railway signalling apparatus
CA92404A (en) Telephone system
CA86807A (en) Telephone system
CA87601A (en) Telephone system
CA88528A (en) Telephone system
CA83790A (en) Telephone system
CA93818A (en) Telephone system and apparatus
CA98571A (en) Electro-capillary apparatus
CA86234A (en) Telephone transmitter
CA92405A (en) Telephone transmitter
CA88245A (en) Telephone apparatus
CA95088A (en) Telephone apparatus
CA101346A (en) Selective telephone system
CA107608A (en) Telephone signalling apparatus
CA84952A (en) Call bell
CA85523A (en) Telegraph sounder
CA91170A (en) Electrical block signalling apparatus
CA82729A (en) Display apparatus