CA238226A - Cornet acoustique dirige - Google Patents

Cornet acoustique dirige

Info

Publication number
CA238226A
CA238226A CA238226A CA238226DA CA238226A CA 238226 A CA238226 A CA 238226A CA 238226 A CA238226 A CA 238226A CA 238226D A CA238226D A CA 238226DA CA 238226 A CA238226 A CA 238226A
Authority
CA
Canada
Prior art keywords
sound directing
horn
directing horn
sound
directing
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
CA238226A
Other languages
English (en)
Inventor
Alfred Graham Edward
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 CA238226A publication Critical patent/CA238226A/fr
Expired legal-status Critical Current

Links

CA238226A Cornet acoustique dirige Expired CA238226A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA238226T

Publications (1)

Publication Number Publication Date
CA238226A true CA238226A (fr) 1924-03-04

Family

ID=35142258

Family Applications (1)

Application Number Title Priority Date Filing Date
CA238226A Expired CA238226A (fr) Cornet acoustique dirige

Country Status (1)

Country Link
CA (1) CA238226A (fr)

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