Signboard with data traceability function

The utility model discloses a signboard with a data traceability function. Including a metal cylinder, a transparent traceability nameplate is embedded in the side wall of the metal cylinder; the outer wall of the top end of the metal cylinder is rotationally connected with a rotating disc; the bott...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	ZHOU GENRU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADVERTISING CRYPTOGRAPHY DISPLAY DISPLAYING EDUCATION LABELS OR NAME-PLATES PHYSICS SEALS SIGNS
Online-Zugang:	Volltext bestellen
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