Its first quality Nos. 1 and 2 have been much improved lately not only in the finish, but also in having the reversible center pinion, whereby the accident...
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https://www.riss.kr/link?id=O123907626
1868년
eng
학술저널
PHP / Magazines / Feature
354 [※수록면이 p5 이하이면, Review, Columns, Editor's Note, Abstract 등일 경우가 있습니다.]
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
Its first quality Nos. 1 and 2 have been much improved lately not only in the finish, but also in having the reversible center pinion, whereby the accident...
Its first quality Nos. 1 and 2 have been much improved lately not only in the finish, but also in having the reversible center pinion, whereby the accidental breaking of mainsprings frequently causing bending or breaking of teeth in the wheels or pinions, and even jewels...
Improvement in Machines for Punching Sheet Metals.