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发明名称
Structure and method of producing foams having hydrogen-filled cells for use in airship/balloon envelopes
摘要
A fire-resistant foam having hydrogen-filled cells for use in airship/balloon envelopes.
申请公布号
US4982915(A)
申请公布日期
1991.01.08
申请号
US19890335742
申请日期
1989.04.10
申请人
BROTZ, GREGORY R.
发明人
BROTZ, GREGORY R.
分类号
B64B1/58
主分类号
B64B1/58
代理机构
代理人
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