TY  - BOOK
AU  - Hatfield,H.
TI  - The inventor and his world
AV  - T212 .H4
U1  - 608 
PY  - 1933///
CY  - London
PB  - K. Paul, Trench, Trubner & co. ltd.
KW  - Inventors
KW  - Inventions
N1  - Bibliography: p. 255-263
ER  -