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公开(公告)号:US1276390A
公开(公告)日:1918-08-20
申请号:US8860016
申请日:1916-04-03
Applicant: MASSEY GEORGE
Inventor: MASSEY GEORGE
CPC classification number: B66B1/04
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公开(公告)号:US630251A
公开(公告)日:1899-08-01
申请号:US1898698801
申请日:1898-12-09
Applicant: MASSEY GEORGE
Inventor: MASSEY GEORGE
CPC classification number: E05D13/00 , E05Y2201/218 , Y10T16/645
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