CA3879A - Automatic signal boxes for electro-magnetic fire alarm telegraph - Google Patents

Automatic signal boxes for electro-magnetic fire alarm telegraph

Info

Publication number: CA3879A
Authority: CA; Canada
Prior art keywords: electro; fire alarm; automatic signal; signal boxes; magnetic fire
Prior art date: 1874-09-30
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

CA000003879A

Other languages

French (fr)

Inventor

Moses G. Crane

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

Publication date

1874-09-30

1874-09-30 Application granted granted Critical

1874-09-30 Publication of CA3879A publication Critical patent/CA3879A/en

Status Expired legal-status Critical Current

Links

CA000003879A Automatic signal boxes for electro-magnetic fire alarm telegraph Expired CA3879A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA3879T

Publications (1)

Publication Number	Publication Date
CA3879A true CA3879A (en)	1874-09-30

Family

ID=45120440

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000003879A Expired CA3879A (en)			Automatic signal boxes for electro-magnetic fire alarm telegraph

Country Status (1)

Country	Link
CA (1)	CA3879A (en)

0
- CA CA000003879A patent/CA3879A/en not_active Expired

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