Takako Tokugawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
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- Patent number 11,450,239
- Issue date Sep 20, 2022
- Hallmark Cards, Incorporated
- Michael Robert Adair
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
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- Publication number 20210158725
- Publication date May 27, 2021
- Hallmark Cards, Inc.
- Michael Robert Adair
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS