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公开(公告)号：US1017655A
公开(公告)日：1912-02-20
申请号：US1911608654
申请日：1911-02-15
Applicant: GEORGE E FOSTER , DRAKE HERBERT L
Inventor： DRAKE HERBERT L
CPC classification number: B27L1/10
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公开(公告)号：US1189395A
公开(公告)日：1916-07-04
申请号：US1913803896
申请日：1913-12-01
Applicant: SHAW WILLIAM S , DRAKE HERBERT L , SHAW FREDERICK M
Inventor： SHAW WILLIAM S , DRAKE HERBERT L , SHAW FREDERICK M
CPC classification number: B27L1/10
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