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Inventions
Technological innovations
51
History
32
Technology
23
Inventors
21
Management
16
Creative ability in technology
14
Marketing
14
Patents
12
Research
11
Entrepreneurship
10
Patent laws and legislation
10
Juvenile literature
9
New products
8
Science
6
Creative thinking
5
Encyclopedias
5
Engineering
5
Government publications
5
New business enterprises
5
Popular works
5
Discoveries in science
4
Humorous stories
4
Miscellanea
4
Schools
4
Teachers
4
Technology and civilization
4
Time travel
4
Creative ability in business
3
Education, Higher
3
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17出版 2019Conference Proceeding 圖書
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20出版 2015Conference Proceeding 圖書