CA571024A - Systeme avertisseur de telephone - Google Patents

Systeme avertisseur de telephone

Info

Publication number
CA571024A
CA571024A CA571024A CA571024DA CA571024A CA 571024 A CA571024 A CA 571024A CA 571024 A CA571024 A CA 571024A CA 571024D A CA571024D A CA 571024DA CA 571024 A CA571024 A CA 571024A
Authority
CA
Canada
Prior art keywords
alarm system
telephone alarm
telephone
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
CA571024A
Other languages
English (en)
Inventor
M. Friedmann Louis
F. Ross Karl
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
Application granted granted Critical
Publication of CA571024A publication Critical patent/CA571024A/fr
Expired legal-status Critical Current

Links

CA571024A Systeme avertisseur de telephone Expired CA571024A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA571024T

Publications (1)

Publication Number Publication Date
CA571024A true CA571024A (fr) 1959-02-24

Family

ID=35743571

Family Applications (1)

Application Number Title Priority Date Filing Date
CA571024A Expired CA571024A (fr) Systeme avertisseur de telephone

Country Status (1)

Country Link
CA (1) CA571024A (fr)

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