-
公开(公告)号:US1297610A
公开(公告)日:1919-03-18
申请号:US22441418
申请日:1918-03-25
Applicant: TSCHUDIN TROUGOTT
Inventor: TSCHUDIN TROUGOTT
CPC classification number: A47K2201/02
-
公开(公告)号:US1297609A
公开(公告)日:1919-03-18
申请号:US16283117
申请日:1917-04-18
Applicant: TSCHUDIN TROUGOTT
Inventor: TSCHUDIN TROUGOTT
CPC classification number: A47K2201/02
-