-
-
-
-
-
-
公开(公告)号:US2293541A
公开(公告)日:1942-08-18
申请号:US25136939
申请日:1939-01-17
Applicant: HALL JOSEPH M
Inventor: HALL JOSEPH M
IPC: F04C2/356
CPC classification number: F04C2/3564
-
公开(公告)号:US2230943A
公开(公告)日:1941-02-04
申请号:US20197838
申请日:1938-04-14
Applicant: HALL JOSEPH M
Inventor: HALL JOSEPH M
IPC: B01D1/00
CPC classification number: B01D1/00
-
公开(公告)号:US2188506A
公开(公告)日:1940-01-30
申请号:US16122337
申请日:1937-08-27
Applicant: HALL JOSEPH M
Inventor: HALL JOSEPH M
IPC: A23C1/04
CPC classification number: A23C1/04
-
公开(公告)号:US2280073A
公开(公告)日:1942-04-21
申请号:US27364139
申请日:1939-05-15
Applicant: HALL JOSEPH M
Inventor: HALL JOSEPH M
IPC: B01D1/18
CPC classification number: B01D1/18
-
公开(公告)号:US2133987A
公开(公告)日:1938-10-25
申请号:US69677333
申请日:1933-11-06
Applicant: HALL JOSEPH M , TUCKER HERBERT E
Inventor: HALL JOSEPH M , TUCKER HERBERT E
IPC: F16H61/02
CPC classification number: F16H61/0293 , F16H2710/08
-
-
-
-
-
-
-
-
-