(A) Johannes Gutenberg
(B) Harmon S. Palmer
(C) Melitta Bentz
(D) None of the Above
MorganEnlightened
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(B) Harmon S. Palmer Harmon S. Palmer invented the cinder block. (Source: Google Search)
(B) Harmon S. Palmer
Harmon S. Palmer invented the cinder block. (Source: Google Search)
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