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发明名称
DEVICE TO CONTINUE OPERATING BODY OF SPECIFIC WEIGHT OF LESS THAN ONE BY USE OF BUOYANCY AND GRAVITY
摘要
申请公布号
JPS56124682(A)
申请公布日期
1981.09.30
申请号
JP19800027089
申请日期
1980.03.03
申请人
KOYAMA KOUICHI
发明人
KOYAMA KOUICHI
分类号
F03B17/00;F03B17/02
主分类号
F03B17/00
代理机构
代理人
主权项
地址
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