TY  - BOOK
AU  - Epstein,Sam
TI  - The real book about inventions,
T2  - Real books
PY  - 1951///]
CY  - Garden City, N.Y., [New York
PB  - Garden City Books, by arrangement with F. Watts
KW  - Inventions
KW  - Industrial arts
KW  - History
ER  -