CPC Y10T29/49622
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CPC Y10T29/49622 is a patent class for xyz.[1][2]
References
This wiki has 1 patents in category "CPC Y10T29/49622".
Patents in category CPC Y10T29/49622
- Patent US-1919-1301747 (Inventors: Alliott Verdon Roe, Filing date: 1917-05-12)
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