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公开(公告)号：US2861527A
公开(公告)日：1958-11-25
申请号：US51008355
申请日：1955-05-23
Applicant: THERMOID COMPANY
Inventor： PHILLIPS CHARLES S
IPC: A01C7/20
CPC classification number: A01C7/206 , Y10S285/903
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公开(公告)号：US2818036A
公开(公告)日：1957-12-31
申请号：US43393354
申请日：1954-06-02
Applicant: THERMOID COMPANY
Inventor： PHILLIPS CHARLES S
IPC: A01C7/20
CPC classification number: A01C7/206
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