-
公开(公告)号:US1568930A
公开(公告)日:1926-01-05
申请号:US2928125
申请日:1925-05-11
Applicant: THOMAS DAY COMPANY
Inventor: WHITMAN SYMMES , WALTER HANSCHEN
公开(公告)号:US1568930A
公开(公告)日:1926-01-05
申请号:US2928125
申请日:1925-05-11
Applicant: THOMAS DAY COMPANY
Inventor: WHITMAN SYMMES , WALTER HANSCHEN