-
公开(公告)号:US2094740A
公开(公告)日:1937-10-05
申请号:US5963736
申请日:1936-01-17
Applicant: MENGEL COMPANY INC
Inventor: GREEN WARREN T
公开(公告)号:US2094740A
公开(公告)日:1937-10-05
申请号:US5963736
申请日:1936-01-17
Applicant: MENGEL COMPANY INC
Inventor: GREEN WARREN T