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Yuzuru Hiraga Digital Archive
三菱造船所船型試験課ニ於ケル球ノ実験装置 海軍技術研究所研究部造船班
Yuzuru Hiraga Digital Archive
ARRANGEMENT OF HELE-SHAW ELECTRIC HYDRAULIC STEERING GEAR
Yuzuru Hiraga Digital Archive
COMPARATIVE RESULTS OBTAINED FROM MILD STEEL, HIGH TENSILE STEEL, AND DUCOL STEEL FOR INFORMATION OF ADMIRAL Y. HIRAGA
Yuzuru Hiraga Digital Archive
「ニューヨークシップ」造船所視察報告
Yuzuru Hiraga Digital Archive
PARTICULARS OF THREE QUALITIES OF STEEL WHICH WERE FORWARDED TO ADMIRAL Y. HIRAGA
Yuzuru Hiraga Digital Archive
DUCOL STEEL (LETTERS FROM DAVID COLVILLE & SONS)
Yuzuru Hiraga Digital Archive
RESULTS OF TESTS OF SPECIMENS, 「マンチェスター」「アームストロング」製綱所記事添付書類
Yuzuru Hiraga Digital Archive
封筒宛名JOHN HASTIE & CO., ltd.より ADMIRAL Y. HIRAGA
Yuzuru Hiraga Digital Archive
LETTER FROM HAMMOND & CO. TO ADMIRAL HIRAGA
Yuzuru Hiraga Digital Archive
LETTER FROM JOHN HASTIE & CO. TO HAMMOND & CO.
Yuzuru Hiraga Digital Archive
LETTERS FROM JOHN HASTIE & COMPANY LTD. TO ADMIRAL Y. HIRAGA
Yuzuru Hiraga Digital Archive
ARRANGEMENT OF HELE-SHAW ELECTRIC HYDRAULIC STEERING GEAR
Yuzuru Hiraga Digital Archive
PROPOSED ARRANGEMENT OF HELE-SHAW ELECTRIC HYDRAULIC STEERING GEAR
Yuzuru Hiraga Digital Archive
PARTICULARS OF PROPOSED ALTERNATIVE STEERING GEARS FOR T.B.D
Yuzuru Hiraga Digital Archive
LETTER FROM JOHN HASTIE & CO. TO HAMMOND & CO.
Yuzuru Hiraga Digital Archive
ON MECHANICAL TESTS OF TEST PIECES PREPARED FROM SAMPLES OF STEEL SUPPLIED BY MESSRS. WM. BEARDMORE & CO. LTD.
Yuzuru Hiraga Digital Archive
PROPOSED FRENCH T.B.D.
Yuzuru Hiraga Digital Archive
列国潜水艦調 大正十三年十二月十五日
Yuzuru Hiraga Digital Archive
THE ENGINEER MAY 2,1924
Yuzuru Hiraga Digital Archive