CA492544A - Sirenes rotatives - Google Patents

Sirenes rotatives

Info

Publication number
CA492544A
CA492544A CA492544A CA492544DA CA492544A CA 492544 A CA492544 A CA 492544A CA 492544 A CA492544 A CA 492544A CA 492544D A CA492544D A CA 492544DA CA 492544 A CA492544 A CA 492544A
Authority
CA
Canada
Prior art keywords
sirens
rotary
rotary sirens
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
CA492544A
Other languages
English (en)
Inventor
Stuart Russell Ernest
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 CA492544A publication Critical patent/CA492544A/fr
Expired legal-status Critical Current

Links

CA492544A Sirenes rotatives Expired CA492544A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA492544T

Publications (1)

Publication Number Publication Date
CA492544A true CA492544A (fr) 1953-05-05

Family

ID=35637922

Family Applications (1)

Application Number Title Priority Date Filing Date
CA492544A Expired CA492544A (fr) Sirenes rotatives

Country Status (1)

Country Link
CA (1) CA492544A (fr)

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