System and method for Online platform based multi-level network sales

The present invention relates to an online platform-based multi-level network sale system, which includes: a user terminal providing a user with messenger-based online communication and providing an online multi-level network platform based on the online communication; and a service server providing...

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1. Verfasser: LEE, SUN PYO
Format: Patent
Sprache:eng ; kor
Schlagworte:
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