CA343044A - Systeme d'avertisseur - Google Patents

Systeme d'avertisseur

Info

Publication number
CA343044A
CA343044A CA343044A CA343044DA CA343044A CA 343044 A CA343044 A CA 343044A CA 343044 A CA343044 A CA 343044A CA 343044D A CA343044D A CA 343044DA CA 343044 A CA343044 A CA 343044A
Authority
CA
Canada
Prior art keywords
alarm system
alarm
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
CA343044A
Other languages
English (en)
Inventor
Herbert Wheeler Clyde
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA343044A publication Critical patent/CA343044A/fr
Expired legal-status Critical Current

Links

CA343044A Systeme d'avertisseur Expired CA343044A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA343044T

Publications (1)

Publication Number Publication Date
CA343044A true CA343044A (fr) 1934-07-10

Family

ID=35314317

Family Applications (1)

Application Number Title Priority Date Filing Date
CA343044A Expired CA343044A (fr) Systeme d'avertisseur

Country Status (1)

Country Link
CA (1) CA343044A (fr)

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