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Subject
- Agricultural instruments[remove]10
- Agricultural machinery--Design and construction10
- Drafting and industrial drawings7
- Mechanical drawing7
- Architecture--Designs and plans2
- Architecture--Designs and plans--Working drawings2
- Water levels2
- Agriculture1
- Arachis1
- Barilla1
- Bridges--Design and construction1
- Canals--Design and construction1
- Cements, Adhesive1
- Cotton yarn1
- Cottonseed oil1
- Dyes and dyeing--Cotton1
- Hydraulic engineering1
- Lumber trade1
- Mills and mill-work1
- Naval architecture1