CA59927A - Systeme de signal electrique - Google Patents

Systeme de signal electrique

Info

Publication number: CA59927A
Authority: CA; Canada
Prior art keywords: signalling system; electric signalling; electric; signalling
Prior art date: 1897-09-21
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

CA000059927A

Other languages

English (en)

Inventor

Warren M. Craft

George W. Whittemore

John A. Barrett

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 Company of Canada

Original Assignee

Bell Telephone Company of Canada

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.)

1897-09-21

Filing date

1897-09-21

Publication date

1898-05-07

1897-09-21 Application filed by Bell Telephone Company of Canada filed Critical Bell Telephone Company of Canada

1898-05-07 Application granted granted Critical

1898-05-07 Publication of CA59927A publication Critical patent/CA59927A/fr

Status Expired legal-status Critical Current

Links

230000011664 signaling Effects 0.000 title 1

CA000059927A 1897-09-21 1897-09-21 Systeme de signal electrique Expired CA59927A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA59927T		1897-09-21

Publications (1)

Publication Number	Publication Date
CA59927A true CA59927A (fr)	1898-05-07

Family

ID=45176465

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000059927A Expired CA59927A (fr)	1897-09-21	1897-09-21	Systeme de signal electrique

Country Status (1)

Country	Link
CA (1)	CA59927A (fr)

1897
- 1897-09-21 CA CA000059927A patent/CA59927A/fr not_active Expired

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