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信息处理用一般用途纸卡片
General Purpose Paper Cards for Information Processing
参考页数:
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信息处理用通用纸卡片
General Purpose Paper Cards for Information Processing
参考页数:
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穿孔纸带.纸带输送孔和代码孔的尺寸规格和定位
Punched paper tape - Dimensions and location of feed holes and code holes
参考页数:2P.;A4
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信息交换用有孔交换磁带
Interchange Rolls of Perforated Tape for Information Interchange
参考页数:8P.;A4
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未穿孔浸油纸穿孔带的性能
Specifications for Properties of Unpunched Oiled Paper Perforator Tape
参考页数:13P.;A4
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12行穿孔卡片上的矩形孔
Rectangular Holes in Twelve-Row Punched Cards
参考页数:10P.;A4
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信息交换用1英寸穿孔纸带的卷带盘
Take-up Reels for One Inch Perforated Tape for Information Interchange
参考页数:12P.;A4
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信息交换用11-16英寸穿孔纸带
Eleven-Sixteenths Inch Perforated Paper Tape for Information Interchange
参考页数:2P.;A4
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信息交换用1英寸穿孔纸带
One-Inch Perforated Paper Tape for Information Interchange
参考页数:2P.;A4
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数控机床穿孔带用信息交换用美国标准代码子集
Subset of American National Standard Code for Information Interchange for Numerical Machine Control Perforated Tape
参考页数:
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