This Day in Patent History - On October 24, 1836, Alonzo D. Phillips patented a friction match. On October 24, 1836, Alonzo D. Phillips patented a friction match. This was 68th patent issued in US. …
This Day in Patent History – On October 21, 1824, Joseph Aspdin patented Portland cement. Patent no. BP 5022. Patent Title – An…
