CPC Y10T403/44
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CPC Y10T403/44 is a patent class for xyz.[1][2]
References
This wiki has 1 patents in category "CPC Y10T403/44".
Patents in category CPC Y10T403/44
- Patent US-1920-1347040 (Inventors: Harris G Hooper, Filing date: 1918-09-19)
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