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公开(公告)号：US722073A
公开(公告)日：1903-03-03
申请号：US1901044129
申请日：1901-01-21
Applicant: JOHN R JOHNSTON , ANDERSON JAMES A , HOLLINGSWORTH CLARENCE M
Inventor： ANDERSON JAMES A , HOLLINGSWORTH CLARENCE M
CPC classification number: F27B9/262
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公开(公告)号：US694711A
公开(公告)日：1902-03-04
申请号：US1901044130
申请日：1901-01-21
Applicant: JOHN R JOHNSTON , ANDERSON JAMES A , HOLLINGSWORTH CLARENCE M
Inventor： ANDERSON JAMES A , HOLLINGSWORTH CLARENCE M
CPC classification number: C03B27/0404
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