CA470500A - Dispositifs d'avertissement par radio - Google Patents

Dispositifs d'avertissement par radio

Info

Publication number
CA470500A
CA470500A CA470500A CA470500DA CA470500A CA 470500 A CA470500 A CA 470500A CA 470500 A CA470500 A CA 470500A CA 470500D A CA470500D A CA 470500DA CA 470500 A CA470500 A CA 470500A
Authority
CA
Canada
Prior art keywords
warning devices
radio warning
radio
devices
warning
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
CA470500A
Other languages
English (en)
Inventor
S. Halstead William
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.)
Farnsworth Television and Radio Corp
Original Assignee
Farnsworth Television and Radio Corp
Publication date
Application granted granted Critical
Publication of CA470500A publication Critical patent/CA470500A/fr
Expired legal-status Critical Current

Links

CA470500A Dispositifs d'avertissement par radio Expired CA470500A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA470500T

Publications (1)

Publication Number Publication Date
CA470500A true CA470500A (fr) 1951-01-02

Family

ID=35604440

Family Applications (1)

Application Number Title Priority Date Filing Date
CA470500A Expired CA470500A (fr) Dispositifs d'avertissement par radio

Country Status (1)

Country Link
CA (1) CA470500A (fr)

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