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发明名称
MODULATING GAS HEATING CONTROL
摘要
申请公布号
CA524308(A)
申请公布日期
1956.04.24
申请号
CAD524308
申请日期
申请人
PENN CONTROLS
发明人
RALPH S. PENN;PAUL SCHELL;PAUL O. PENN
分类号
主分类号
代理机构
代理人
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