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公开(公告)号:US1816559A
公开(公告)日:1931-07-28
申请号:US20784427
申请日:1927-07-23
Applicant: ANDERSON JOHN C
Inventor: ANDERSON JOHN C
IPC: B65G15/54
CPC classification number: B65G15/54 , B65G2201/02
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公开(公告)号:US1769818A
公开(公告)日:1930-07-01
申请号:US16857927
申请日:1927-02-16
Applicant: ANDERSON JOHN C
Inventor: ANDERSON JOHN C
IPC: C03B25/06
CPC classification number: C03B25/06
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