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公开(公告)号:US2891477A
公开(公告)日:1959-06-23
申请号:US52451155
申请日:1955-07-26
Applicant: DU PONT
Inventor: EDWARD SWANSON MERRILL
IPC: F42B3/192
CPC classification number: F42B3/192
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公开(公告)号:US2739535A
公开(公告)日:1956-03-27
申请号:US17386250
申请日:1950-07-14
Applicant: ATLAS POWDER CO
Inventor: ROLLAND GUY F , SHOENER LE ROY A , YOUNG AUBREY A
IPC: F42B3/192
CPC classification number: F42B3/192
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