Revision history of "William Petrie II"

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  • (cur | prev) 11:00, 8 October 2020Doug Engle (talk | contribs). . (3,623 bytes) (+3,623). . (Created page with "William Petrie II (1821-1908) was an electrical engineer, best known for the development of the arc lamp. =Life= He was born Jan. 21, 1821 at King's Langley, Hertfordshire,...")