Assignee

IKAI KAZUYA

JP·1 granted patent·0 citations·filing 2012–2012

Technology mixB21F1 B24C1 C21D1 C22C1 F16F1

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0141US10359090B2Compression coil spring and method for producing sameIKAI KAZUYA·Filed 2012·Granted Jul 23, 2019·0 cites·20 claims

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