International patent classification . Volume 3 , Sections E and F
Contents: Volume 1. Section A, human necessitites. Section B, performing operations, transporting -- Volume 2. Section C, chemistry, metallurgy. Section D, textiles, paper -- Volume 3. Section E, fixed constructions. Section F, mechanical engineering, lighting, heating, weapons, blasting -- Volume 4. Section G, physics. Section H, electricity -- Volume 5. Guide.
9280514407
Patents--Classification
Physics--Patents
Electricity--Patents
Mechanical engineering--Patents
Lighting--Patents
Weapons--Patents
Blasting--Patents
T255 .F4 / I573 2006