CA428861A - Systeme de signaux d'avertisseur - Google Patents

Systeme de signaux d'avertisseur

Info

Publication number
CA428861A
CA428861A CA428861A CA428861DA CA428861A CA 428861 A CA428861 A CA 428861A CA 428861 A CA428861 A CA 428861A CA 428861D A CA428861D A CA 428861DA CA 428861 A CA428861 A CA 428861A
Authority
CA
Canada
Prior art keywords
alarm signal
signal system
alarm
signal
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
CA428861A
Other languages
English (en)
Inventor
Herbert Wheelock John
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.)
SIGNAL ENGINEERING AND MANUFACTURING Co
Original Assignee
SIGNAL ENGINEERING AND MANUFACTURING Co
Publication date
Application granted granted Critical
Publication of CA428861A publication Critical patent/CA428861A/fr
Expired legal-status Critical Current

Links

CA428861A Systeme de signaux d'avertisseur Expired CA428861A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA428861T

Publications (1)

Publication Number Publication Date
CA428861A true CA428861A (fr) 1945-07-17

Family

ID=35543847

Family Applications (1)

Application Number Title Priority Date Filing Date
CA428861A Expired CA428861A (fr) Systeme de signaux d'avertisseur

Country Status (1)

Country Link
CA (1) CA428861A (fr)

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