-
公开(公告)号:US2405128A
公开(公告)日:1946-08-06
申请号:US53020444
申请日:1944-04-08
Applicant: NAT STANDARD CO
Inventor: BERQUIST LEONARD G
IPC: B21D5/08
CPC classification number: B21D5/08
-
公开(公告)号:US3160275A
公开(公告)日:1964-12-08
申请号:US13650461
申请日:1961-09-07
Applicant: NAT STANDARD CO
Inventor: BERQUIST LEONARD G
IPC: B65D85/04
CPC classification number: B65D85/04
-
公开(公告)号:US2874411A
公开(公告)日:1959-02-24
申请号:US60327956
申请日:1956-08-10
Applicant: NAT STANDARD CO
Inventor: BERQUIST LEONARD G
CPC classification number: B29D23/001 , B29C47/0016 , B29C47/023 , B29D30/0681 , B29D2030/0682 , B29D2030/088 , B29K2021/00 , B29K2105/0827 , B29L2030/003
-
公开(公告)号:US2266903A
公开(公告)日:1941-12-23
申请号:US29906839
申请日:1939-10-12
Applicant: NAT STANDARD CO
Inventor: PIERCE ROBERT C , BERQUIST LEONARD G
CPC classification number: B65H75/22 , B65H75/14 , B65H2701/515 , B65H2701/51522
-
5.Methods and apparatus for use in the industrial magnetic materials art 失效
Title translation: 用于工业磁性材料的方法和装置公开(公告)号:US3449733A
公开(公告)日:1969-06-10
申请号:US3449733D
申请日:1964-04-01
Applicant: NAT STANDARD CO
Inventor: BERQUIST LEONARD G
-
公开(公告)号:US3183135A
公开(公告)日:1965-05-11
申请号:US23910662
申请日:1962-11-19
Applicant: NAT STANDARD CO
Inventor: BERQUIST LEONARD G
CPC classification number: B29C47/023 , B29C47/0026 , B29D30/0061 , B29D30/08 , B29D2030/088 , B29D2030/381 , B60C9/0007
-
公开(公告)号:US2743098A
公开(公告)日:1956-04-24
申请号:US32664952
申请日:1952-12-18
Applicant: NAT STANDARD CO
Inventor: BERQUIST LEONARD G
CPC classification number: C21D9/54 , C21D9/0025 , Y10S242/908
-
公开(公告)号:US2338795A
公开(公告)日:1944-01-11
申请号:US28180139
申请日:1939-06-29
Applicant: NAT STANDARD CO
Inventor: BERQUIST LEONARD G
IPC: C25D7/06
CPC classification number: C25D7/0607
-
公开(公告)号:US2311775A
公开(公告)日:1943-02-23
申请号:US30164839
申请日:1939-10-27
Applicant: NAT STANDARD CO
Inventor: PIERCE ROBERT C , BERQUIST LEONARD G
IPC: B21C1/12
CPC classification number: B21C1/12
-
-
-
-
-
-
-
-