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计算工具 (Calculating Machines and Devices)...
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密码机 (Cipher Machines)...
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收银机 (Cash Registers)...
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远程通讯工具 (Telecommunication)...
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办公用具和设施 (Office Equipment ...
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打字机 (Typewriters)...
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信息处理 (Data Processing)...
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技术与艺术 (Art & Engineering)...
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日常家居 (Everday Life)...
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测量工具 (Surveying Instruments)...
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科学仪器和实验室用品 (Scientific Instruments and Labora...
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光学仪器 (Optical Instruments)...
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显微镜 (Microscopes)...
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电气技术 (Electrical Engineering)...
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航海用具 (Nautical Antiques)...
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航空用具 (Aircraft Motoring)...
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机动车和自行车 (Automobilia, Motorcycles & Bikes)...
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古老行业工具 (Tools of old Professions)...
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制图工具 (Drawing Instruments)...
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印刷机和装订机 (Printer and Bookbinder)...
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美国专利申请模型 (U.S.Patent Models and Salesman Samp...
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医药技术 (Pharmacy and Medical Technology)...
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收音机和电视机 (Radio and TV Sets)...
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钟表 (Clocks and Watches etc.)...
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自动贩卖机和自动游戏机 (Vending and Gambling Machines)...
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机械乐器 (Mechanical Music Instruments)...
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滚筒留声机 (Phonographs)...
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唱片留声机 (Gramophones)...
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盘片音乐盒 (Disc Musical Boxes)...
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滚筒音乐盒 (Cylinder Musical Boxes)...
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机械玩具及自动玩偶 （Mechanical Toys & Automata)...
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玩偶 (Dolls)...
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铅皮玩具及其他 (Tin Toy and more)...
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火车模型 (Model Trains)...
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蒸汽机 (Steam Engines)...
