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公开(公告)号:US1537370A
公开(公告)日:1925-05-12
申请号:US47182721
申请日:1921-05-23
Applicant: PEIRCE ALBERT E
Inventor: PEIRCE ALBERT E
IPC: A63F7/06
CPC classification number: A63F7/0668
公开(公告)号:US1537370A
公开(公告)日:1925-05-12
申请号:US47182721
申请日:1921-05-23
Applicant: PEIRCE ALBERT E
Inventor: PEIRCE ALBERT E
IPC: A63F7/06
CPC classification number: A63F7/0668