-
公开(公告)号:US2202849A
公开(公告)日:1940-06-04
申请号:US3739735
申请日:1935-08-22
Applicant: MAX ISAACSON , SOL SHAPPIRIO
Inventor: GRANT RUDOLPH R
-
公开(公告)号:US2349165A
公开(公告)日:1944-05-16
申请号:US32814940
申请日:1940-04-05
Applicant: MAX ISAACSON , SOL SHAPPIRIO
Inventor: GRANT RUDOLPH R
-