Improvements in or relating to ventilator operating gear for use in longitudinally arranged houses such as glass houses and the like
- 专利权人:
- REGINALD CLARENCE HALIFAX
- 发明人:
- 申请号:
- GB19450027033
- 公开号:
- GB602529(A)
- 申请日:
- 1945.10.16
- 申请国别(地区):
- 英国
- 年份:
- 1948
- 代理人:
- 摘要:
- 来源网站:
- 中国工程科技知识中心