Hollow Concrete Block Wall Patent Print
Patent No. US674874 · 1901
Invented by Harmon S. Palmer
Vintage 1901 patent drawing of the hollow concrete block wall by Harmon S. Palmer. Museum-quality archival giclée print.
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About This Print
Vintage 1901 patent drawing of the hollow concrete block wall by Harmon S. Palmer. Museum-quality archival giclée print.
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