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公开(公告)号:US1922860A
公开(公告)日:1933-08-15
申请号:US56915331
申请日:1931-10-16
Applicant: VONNEGUT HARDWARE COMPANY
Inventor: POWELL JOHN F
IPC: E06B3/36
CPC classification number: E06B3/365
公开(公告)号:US1922860A
公开(公告)日:1933-08-15
申请号:US56915331
申请日:1931-10-16
Applicant: VONNEGUT HARDWARE COMPANY
Inventor: POWELL JOHN F
IPC: E06B3/36
CPC classification number: E06B3/365