Menu Expand Menu Close
Back to Top
Filter Search Expand Close Filter
Search Expand Search Close

Search Constraints

Start Over
You searched for: All Subjects Air--Purification. Remove constraint All Subjects: Air--Purification. Subject Topical Air--Purification. Remove constraint Subject Topical: Air--Purification.
1 entry found
Number of results to display per page

Search Results

1. Mine ventilation.

Creator Personal:
Harrington, D. (Daniel), 1878-
Title:
Mine ventilation.
Call Number:
P19469
Date:
1939
Description:

Serial issue. Issued as: United States. Bureau of Mines. Information circular, 7047 (1939:Jan.).

Subject Topical:
Mine ventilation., Mine dusts., Air--Purification.
All:
Mine ventilation., Mine dusts., Air--Purification.