-
-
2.
公开(公告)号:US2863090A
公开(公告)日:1958-12-02
申请号:US35754253
申请日:1953-05-26
Applicant: IBM
Inventor: YOUNG DONALD R , LANO JR RALPH B DE , SHULTZ GERALD L
-
公开(公告)号:US2863090A
公开(公告)日:1958-12-02
申请号:US35754253
申请日:1953-05-26
Applicant: IBM
Inventor: YOUNG DONALD R , LANO JR RALPH B DE , SHULTZ GERALD L