Electric lights for use about oil and gas wells
By: by H.H. Clark.
Series: [United States] Bureau of Mines. Technical paper; 79.; Petroleum technology; 19
Publisher: Govt. Print. Off.
Published: 1914
Place of publication: Washington
Language: eng
Subjects: Incandescent lamps -- Testing.
Notes: At head of title: ... Department of the Interior. Bureau of Mines. Joseph A. Holmes, director.
On verso of t.-p.: ... Issued in August, 1914.
"Publications on petroleum technology": p. 8.