TY  - BOOK
AU  - Byrn,Edward W., x
AU  - x
TI  - The progress of invention in the nineteenth century: x
SN  - x
U1  - 608/BYP 
PY  - 1970///
CY  - New York.
PB  - Russell & Russell.
KW  - Engineering
KW  - Inventions
N1  - x
ER  -