Seven Birds Ltd.

Japon

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Quantité totale PI 3
Rang # Quantité totale PI 516 933
Note d'activité PI 0/5.0    0
Rang # Activité PI 1 709 712

Brevets

Marques

0 0
0 0
3 0
0
 
Dernier brevet 2013 - Damper device for upright piano
Premier brevet 2011 - Zipper bag

Derniers inventions, produits et services

2012 Invention Damper device for upright piano. In a conventional upright piano, the damper is configured integr...
2011 Invention Upright piano hammer and string striking mechanism employing same. An objective of the present in...
Invention Zipper bag. When opening a zipper bag or when breaking the seal, the action of grasping the two e...