CA680481A - Acoustical panels - Google Patents

Acoustical panels

Info

Publication number
CA680481A
CA680481A CA680481A CA680481DA CA680481A CA 680481 A CA680481 A CA 680481A CA 680481 A CA680481 A CA 680481A CA 680481D A CA680481D A CA 680481DA CA 680481 A CA680481 A CA 680481A
Authority
CA
Canada
Prior art keywords
acoustical panels
acoustical
panels
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
CA680481A
Inventor
W. Landgraf George
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.)
Johns Manville Corp
Original Assignee
Johns Manville Corp
Publication date
Application granted granted Critical
Publication of CA680481A publication Critical patent/CA680481A/en
Expired legal-status Critical Current

Links

CA680481A Acoustical panels Expired CA680481A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA680481T

Publications (1)

Publication Number Publication Date
CA680481A true CA680481A (en) 1964-02-18

Family

ID=35981560

Family Applications (1)

Application Number Title Priority Date Filing Date
CA680481A Expired CA680481A (en) Acoustical panels

Country Status (1)

Country Link
CA (1) CA680481A (en)

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