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US Trademark Classification

流纹岩 019-1327

Chinese 流纹岩
English Rhyolite
Spanish Riolita
Term ID
019-1327
Class
19
Type
Goods
Status
Active · added, not since modified (A)
Effective date
2018-03-22
Version
11-2018

Notes

流纹岩是一种火山岩,是花岗岩的熔岩形式。