Aircraft equipment airworthiness ...
Publisher: U.S. Govt. print. off.
Published: 1938
Place of publication: Washington, D.C
Language: eng
Notes: Cover-title.

At head of title: U.S. Dept. of commerce. Daniel C. Roper, Secretary. Bureau of air commerce. Denis Mulligan, Director.

"Air commerce manual. 15."

Reproduced from typewritten copy.