ノート:リン酸塩皮膜処理
パーカー兄弟ではなくパーカー親子のようです。
[編集]The first appearance of a phosphate coating process came from England, patented by one William Alexander Ross in 1869. Thomas Coslett, also of England, developed another phosphating process, which he patented in Britain in 1906 and the United States in 1907. The Coslett process was an iron phosphating process, and in 1912, an American named Frank Rupert Granville Richards, invented the manganese phosphating process, for which he was granted a separate patent. Another American, Clark W. Parker, bought the patent rights to the Coslett and Richards processes, and after making several experiments in his home kitchen, went on to found the Parker Rust-proof Phosphating Company of America in Detroit in 1915, along with his son, Wyman C. Parker.--yopioid（会話） 2024年9月23日 (月) 01:29 (UTC)
- https://firearmshistory.blogspot.com/2010/08/metal-treatments-parkerizing.html
- 根拠
- 英語版のwikipediaにも親子と書いてあります。--yopioid（会話） 2024年9月23日 (月) 01:32 (UTC)