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公开(公告)号:US2745449A
公开(公告)日:1956-05-15
申请号:US42718754
申请日:1954-05-03
Applicant: OLAF PEARSON
Inventor: OLAF PEARSON
IPC: B27M3/12
CPC classification number: B27M3/12
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2.Automatic machine for routing right and left-hand stair stringers 失效
Title translation: 自动机用于路由左右两侧楼梯桁架公开(公告)号:US2939499A
公开(公告)日:1960-06-07
申请号:US68422157
申请日:1957-09-16
Applicant: OLAF PEARSON
Inventor: OLAF PEARSON
IPC: B27M3/12
CPC classification number: B27M3/12
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公开(公告)号:US2832105A
公开(公告)日:1958-04-29
申请号:US57179256
申请日:1956-03-15
Applicant: OLAF PEARSON
Inventor: OLAF PEARSON
IPC: E06B3/46
CPC classification number: E06B3/4654
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公开(公告)号:US2990567A
公开(公告)日:1961-07-04
申请号:US82371659
申请日:1959-06-29
Applicant: OLAF PEARSON
Inventor: OLAF PEARSON
IPC: E05D15/06
CPC classification number: E05D15/0634 , E05Y2201/696 , E05Y2201/712 , E05Y2900/132 , Y10T16/3834 , Y10T74/19828
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公开(公告)号:US2786227A
公开(公告)日:1957-03-26
申请号:US40288754
申请日:1954-01-08
Applicant: OLAF PEARSON
Inventor: OLAF PEARSON
IPC: E05D15/06
CPC classification number: E05D15/0634 , E05Y2201/696 , E05Y2900/132 , Y10T16/3834
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公开(公告)号:US2746080A
公开(公告)日:1956-05-22
申请号:US35159053
申请日:1953-04-28
Applicant: OLAF PEARSON
Inventor: OLAF PEARSON
IPC: E05D15/06
CPC classification number: E05D15/0634 , E05Y2201/696 , E05Y2900/132 , Y10T16/3834
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公开(公告)号:US2741794A
公开(公告)日:1956-04-17
申请号:US26558152
申请日:1952-01-09
Applicant: OLAF PEARSON
Inventor: OLAF PEARSON
IPC: E05D15/06
CPC classification number: E05D15/06 , E05Y2900/132 , Y10T16/361 , Y10T16/37 , Y10T16/3834
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