-
公开(公告)号:US1018419A
公开(公告)日:1912-02-27
申请号:US1909473684
申请日:1909-01-22
Applicant: HILTON ROBERT W
Inventor: HILTON ROBERT W
公开(公告)号:US1018419A
公开(公告)日:1912-02-27
申请号:US1909473684
申请日:1909-01-22
Applicant: HILTON ROBERT W
Inventor: HILTON ROBERT W