B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
327/38
B23K 9/028 (2006.01)
Patent
CA 930029
Ishii Kenichi
Sasaki Seiya
Shiraishi Hiromi
Tanaka Tohachiro
Sumikin Piping And Construction Company Limited
Sumitomo Metal Industries Ltd.
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