Clutch for attaching drill bar to rock drills used in the Hoosac Tunnel

Dublin Core

Title

Clutch for attaching drill bar to rock drills used in the Hoosac Tunnel

Subject

Tunnels -- Massachusetts -- Photographs.
Hoosac Tunnel (Mass.) -- Photographs.

Date

2010-05-06T18:24:49Z
2010-05-06T18:24:49Z
1866

Contributor

Doane, Thomas.

Type

Image

Files

Citation

“Clutch for attaching drill bar to rock drills used in the Hoosac Tunnel,” Digital Commonwealth , accessed May 25, 2013, http://digitalcommonwealth.org/items/show/13598.

Comments

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