TY  - BOOK
AU  - Grafstein,Paul
AU  - Schwarz,Otto B.
TI  - Pictorial Handbook of Technical Devices
AV  - TJ240 .G7
U1  - 604.26218 
PY  - 1971///
CY  - New York
PB  - Chemical Pub. Co.
KW  - Machinery
KW  - Drawings
KW  - Mechanical movements
KW  - Drawing
N1  - include index
ER  -