-
公开(公告)号:US2443886A
公开(公告)日:1948-06-22
申请号:US63574245
申请日:1945-12-18
Applicant: RCA CORP
Inventor: BIERWIRTH RUDOLPH A
CPC classification number: B65D67/02 , B65G2201/0244
-
公开(公告)号:US2373374A
公开(公告)日:1945-04-10
申请号:US47855743
申请日:1943-03-09
Applicant: RCA CORP
Inventor: BIERWIRTH RUDOLPH A
CPC classification number: F26B5/048 , D01D10/0418 , D01D10/06 , F26B3/347
-
公开(公告)号:US2325652A
公开(公告)日:1943-08-03
申请号:US40761941
申请日:1941-08-20
Applicant: RCA CORP
Inventor: BIERWIRTH RUDOLPH A
IPC: D01D10/00
CPC classification number: D01D10/00 , D01D10/0418 , D01D10/06
-
-
公开(公告)号:US2239773A
公开(公告)日:1941-04-29
申请号:US28730539
申请日:1939-07-29
Applicant: RCA CORP
Inventor: BIERWIRTH RUDOLPH A
IPC: H03F1/36
CPC classification number: H03F1/36
-
公开(公告)号:US2113393A
公开(公告)日:1938-04-05
申请号:US69600233
申请日:1933-10-31
Applicant: RCA CORP
Inventor: BIERWIRTH RUDOLPH A
IPC: H03G5/06
CPC classification number: H03G5/06
-
公开(公告)号:US1997762A
公开(公告)日:1935-04-16
申请号:US63099132
申请日:1932-08-30
Applicant: RCA CORP
Inventor: BIERWIRTH RUDOLPH A
IPC: H03G5/06
CPC classification number: H03G5/06
-
-
-
-
-
-