CA307551A - Acoustic horn - Google Patents

Acoustic horn

Info

Publication number
CA307551A
CA307551A CA307551A CA307551DA CA307551A CA 307551 A CA307551 A CA 307551A CA 307551 A CA307551 A CA 307551A CA 307551D A CA307551D A CA 307551DA CA 307551 A CA307551 A CA 307551A
Authority
CA
Canada
Prior art keywords
acoustic horn
horn
acoustic
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
CA307551A
Other languages
French (fr)
Inventor
Midgley Campbell 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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA307551A publication Critical patent/CA307551A/en
Expired legal-status Critical Current

Links

CA307551A Acoustic horn Expired CA307551A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA307551T

Publications (1)

Publication Number Publication Date
CA307551A true CA307551A (en) 1931-01-13

Family

ID=35260703

Family Applications (1)

Application Number Title Priority Date Filing Date
CA307551A Expired CA307551A (en) Acoustic horn

Country Status (1)

Country Link
CA (1) CA307551A (en)

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