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公开(公告)号：US1758927A
公开(公告)日：1930-05-20
申请号：US34757029
申请日：1929-03-16
Applicant: BUCKLEY JOHN P , NESBITT ARTHUR E
Inventor： BUCKLEY JOHN P , NESBITT ARTHUR E
IPC: B64F1/18
CPC classification number: B64F1/18
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公开(公告)号：US1725563A
公开(公告)日：1929-08-20
申请号：US24768528
申请日：1928-01-18
Applicant: BUCKLEY JOHN P , NESBITT ARTHUR E
Inventor： BUCKLEY JOHN P , NESBITT ARTHUR E
IPC: B64F1/18
CPC classification number: B64F1/18
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