Technological research in the field of cellular phone screen fingerprint recognition
- 条目编号
- 042-3485
- 所属类别
- 第42类 科技服务
- 状态
- 有效（A）
- 类型
- 服务
- 生效日期
- 08/07/2025
- 尼斯版本
- 12-2025
- TM5 通用条目
- 否
官方备注
Technological research in the field of cellular phone screen fingerprint recognition is classified in Class 42 by analogy to "technological research" in the Nice Alphabetical List in Class 42. However, USPTO policy requires specification of the subject matter for this type of research.
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