CA220780A - Manufacture of shingles - Google Patents

Manufacture of shingles

Info

Publication number
CA220780A
CA220780A CA220780A CA220780DA CA220780A CA 220780 A CA220780 A CA 220780A CA 220780 A CA220780 A CA 220780A CA 220780D A CA220780D A CA 220780DA CA 220780 A CA220780 A CA 220780A
Authority
CA
Canada
Prior art keywords
shingles
manufacture
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
CA220780A
Other languages
French (fr)
Inventor
S. Speer Alexander
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.)
ROOFING PATENTS Co
Original Assignee
ROOFING PATENTS Co
Publication date
Application granted granted Critical
Publication of CA220780A publication Critical patent/CA220780A/en
Expired legal-status Critical Current

Links

CA220780A Manufacture of shingles Expired CA220780A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA220780T

Publications (1)

Publication Number Publication Date
CA220780A true CA220780A (en) 1922-07-11

Family

ID=35116383

Family Applications (1)

Application Number Title Priority Date Filing Date
CA220780A Expired CA220780A (en) Manufacture of shingles

Country Status (1)

Country Link
CA (1) CA220780A (en)

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