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公开(公告)号：US675732A
公开(公告)日：1901-06-04
申请号：US1901044295
申请日：1901-01-22
Applicant: WILLIAM B CLERK , HENRY GEORGE A
Inventor： HENRY GEORGE A
CPC classification number: C14B1/40
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公开(公告)号：US1705249A
公开(公告)日：1929-03-12
申请号：US25706928
申请日：1928-02-25
Applicant: HENRY GEORGE A
Inventor： HENRY GEORGE A
IPC: A61H7/00
CPC classification number: A61H7/002 , A61H2201/1692
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