所有权凭证 meaning in Chinese

document of title; title of ownership
documents of title
title deed

If seller fails to provide good title , the contract will become null and ~
如果卖方不能提供有效的所有权凭证，那么该合同将无效。
This contract shall be void , if seller fails to provide good ~ as provided herein
如卖方未能按照此处的规定提供可靠的所有权凭证，那么本合同即告无效。
The licensor shall use its best efforts to assist the licensee in any action , including but not limited to execution of and delivery to the licensee to the satisfaction of the licensee all legal documents ( such as letter of authority , evidence of ownership etc ) as required by the relevant jurisdictions
在任何诉讼中，许可方应尽力协助被许可方，包括但不限于对按照有关管辖权所必要的所有法律文件(诸如授权书，所有权凭证等)的令被许可方满意的签署和递送。