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公开(公告)号:US1171619A
公开(公告)日:1916-02-15
申请号:US1914866016
申请日:1914-10-10
Applicant: WOLFF MFG COMPANY L
Inventor: MCGUIRE JOHN M
CPC classification number: E03D1/01 , Y10T137/7468 , Y10T137/7475
公开(公告)号:US1171619A
公开(公告)日:1916-02-15
申请号:US1914866016
申请日:1914-10-10
Applicant: WOLFF MFG COMPANY L
Inventor: MCGUIRE JOHN M
CPC classification number: E03D1/01 , Y10T137/7468 , Y10T137/7475