发明授权
US4407875A Tableware and decorative articles with a surface of silver 失效
餐具和装饰品用银色表面

Tableware and decorative articles with a surface of silver
摘要:
A double coating for the protection of a silver surface article is disclosed. A protective varnish coating, enclosing an inner varnish layer on the silver surface, intimately adheres to and is removable from said inner varnish layer.
公开/授权文献
信息查询
0/0