TY  - BOOK
AU  - Grafstein,Paul
AU  - Schwarz,Otto B.
TI  - Pictorial handbook of technical devices
SN  - 0668044942
U1  - 604.26218/G736 
PY  - 1978///
CY  - New York
PB  - Arco Publilshing Company
KW  - Mechanical movements
KW  - Drawing
KW  - Machinery
KW  - Drawings
ER  -