-
-
公开(公告)号:USRE14364E
公开(公告)日:1917-09-25
申请日:1916-06-21
Applicant: The Dow Chemical Company
Inventor: Lee E. H. Cone
-
公开(公告)号:USRE14364E
公开(公告)日:1917-09-25
申请日:1916-06-21
Applicant: The Dow Chemical Company
Inventor: Lee E. H. Cone