你即將離開本站

並前往https://www.uspto.gov/web/patents/classification/uspc503/sched503.pdf

class 503 record receiver having plural interactive leaves or a ...

other than mere clay. 220 ..Furanone moiety-containing. 221 ...Fluoran or derivative. 222 ....Molecule having plural fluorans or more than three.

確定！ 回上一頁

查詢 「clay plural」的人也找了：

  1. clays
    2.
  2. uses of clay
    3.
  3. meaning of clay soil
    4.
  4. clay study
    5.
  5. clay britannica
    6.
  6. properties of clay
    7.
  7. types of clay
    8.
  8. sources of clay
    9.