2 results for “Owens-Illinois”
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Patent · January 16, 1940
Interlocking Roofing Unit (US Patent 2,187,139, 1940)
…filed October 1, 1937. The patent's description opens (from the scanned text): My invention relates to improvements in shingles and siding units, and particularly to shingles and siding units which may be applied so as…
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Patent · November 8, 1949
Self Aligning Shingle (US Patent 2,487,593, 1949)
…1948. The patent's description opens (from the scanned text): The invention has for its principal object the provision of improved shingles of a character to provide maximum coverage with a minimum of material and to…