CA394536A - Roofing material manufacturing apparatus - Google Patents

Roofing material manufacturing apparatus

Info

Publication number
CA394536A
CA394536A CA394536A CA394536DA CA394536A CA 394536 A CA394536 A CA 394536A CA 394536 A CA394536 A CA 394536A CA 394536D A CA394536D A CA 394536DA CA 394536 A CA394536 A CA 394536A
Authority
CA
Canada
Prior art keywords
manufacturing apparatus
material manufacturing
roofing material
roofing
manufacturing
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
CA394536A
Other languages
French (fr)
Inventor
A. Cumfer Donald
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.)
Canadian Gypsum Co Ltd
United States Gypsum Co
Original Assignee
Canadian Gypsum Co Ltd
United States Gypsum Co
Publication date
Application granted granted Critical
Publication of CA394536A publication Critical patent/CA394536A/en
Expired legal-status Critical Current

Links

CA394536A Roofing material manufacturing apparatus Expired CA394536A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA394536T

Publications (1)

Publication Number Publication Date
CA394536A true CA394536A (en) 1941-02-11

Family

ID=35402011

Family Applications (1)

Application Number Title Priority Date Filing Date
CA394536A Expired CA394536A (en) Roofing material manufacturing apparatus

Country Status (1)

Country Link
CA (1) CA394536A (en)

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