CA405798A - Sound-absorbing device - Google Patents

Sound-absorbing device

Info

Publication number
CA405798A
CA405798A CA405798DA CA405798A CA 405798 A CA405798 A CA 405798A CA 405798D A CA405798D A CA 405798DA CA 405798 A CA405798 A CA 405798A
Authority
CA
Canada
Prior art keywords
sound
absorbing device
absorbing
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
Other languages
French (fr)
Inventor
Rupert Neelands Abram
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.)
FRANCOIS CEMENTATION Co Ltd
Original Assignee
FRANCOIS CEMENTATION Co Ltd
Publication date
Application granted granted Critical
Publication of CA405798A publication Critical patent/CA405798A/en
Expired legal-status Critical Current

Links

CA405798D Sound-absorbing device Expired CA405798A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA405798T

Publications (1)

Publication Number Publication Date
CA405798A true CA405798A (en) 1942-06-30

Family

ID=35417098

Family Applications (1)

Application Number Title Priority Date Filing Date
CA405798D Expired CA405798A (en) Sound-absorbing device

Country Status (1)

Country Link
CA (1) CA405798A (en)

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