翻訳と辞書 Words near each other ・ Robert MacDonald (cricketer) ・ Robert MacDonald (filmmaker) ・ Robert MacDonald Ford ・ Robert MacDougall ・ Robert Mace ・ Robert MacEwen ・ Robert Macfarlan ・ Robert Macfarlan (schoolmaster) ・ Robert MacFarlan Cole III ・ Robert MacFarlane ・ Robert MacFarlane (Canadian politician) ・ Robert Macfarlane (New Zealand politician) ・ Robert Macfarlane (writer) ・ Robert MacGeorge ・ Robert MacGimsey ・ Robert MacGregor (engineer) ・ Robert MacGregor Dawson ・ Robert MacGregor Mitchell ・ Robert Machado ・ Robert Machin ・ Robert Machray ・ Robert Macintyre ・ Robert MacIntyre Gordon ・ Robert Mackay ・ Robert Mackay (priest) ・ Robert MacKenzie ・ Robert Mackenzie (cricketer) ・ Robert MacKenzie (darts player) ・ Robert MacKenzie (rugby union) ・ Robert Mackenzie (trader) Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Robert MacGregor (engineer) ： ウィキペディア英語版 Robert MacGregor (engineer) Robert MacGregor was a British engineer, who, during the 1920s, concerned over unnecessary losses of North Sea colliers, developed the first steel hatch cover. The design was simple and consisted of five articulated leaves that stowed neatly at the end of each hatch. Patented in 1929, the steel hatch improved ship and cargo safety and had a lasting impact on cargo care. In 1937, to promote and sell his steel hatch covers, Robert MacGregor and his brother Joseph formed MacGregor & Company in Whitley Bay on the north-east coast of England. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Robert MacGregor (engineer)」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.