CA825998A - Acoustical tile - Google Patents

Acoustical tile

Info

Publication number
CA825998A
CA825998A CA825998A CA825998DA CA825998A CA 825998 A CA825998 A CA 825998A CA 825998 A CA825998 A CA 825998A CA 825998D A CA825998D A CA 825998DA CA 825998 A CA825998 A CA 825998A
Authority
CA
Canada
Prior art keywords
acoustical tile
acoustical
tile
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
CA825998A
Inventor
R. Gorka Edward
C. Austin Arthur
W. Kaleta Norbert
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.)
National Gypsum Co
Original Assignee
National Gypsum Co
Publication date
Application granted granted Critical
Publication of CA825998A publication Critical patent/CA825998A/en
Expired legal-status Critical Current

Links

CA825998A Acoustical tile Expired CA825998A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA825998T

Publications (1)

Publication Number Publication Date
CA825998A true CA825998A (en) 1969-10-28

Family

ID=36303439

Family Applications (1)

Application Number Title Priority Date Filing Date
CA825998A Expired CA825998A (en) Acoustical tile

Country Status (1)

Country Link
CA (1) CA825998A (en)

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