Shaft Sinking Apparatus Patents, 1943-1944.

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Shaft Sinking Apparatus Patents, 1943-1944.

http://www.worldcat.org/oclc/714121003

Patents, 1943-1944, issued to John Murray Riddell for improvements to mine shaft sinking apparatus. Includes patent issued by the United States in 1943 as well as a patent issued by the Union of South Africa, a dominion of Great Britain.

0.01 cubic feet; 1 folder.

Michigan Technological University, J.R. Van Pelt & Opie Library; Michigan Tech

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SNAC Resource ID: 8083370

Michigan Technological University, J.R. Van Pelt & Opie Library; Michigan Tech

Related Entities

There are 3 Entities related to this resource.

United States. Patent and Trademark Office

http://n2t.net/ark:/99166/w69w566n (corporateBody)

Riddell, John Murray

http://n2t.net/ark:/99166/w6xp7tgz (person)

Great Britain. Patent Office

http://n2t.net/ark:/99166/w6k697ss (corporateBody)

Paul and Cook were from Woonsocket, R.I. Clark was their trustee in England. From the description of Patent, 1869, February 5 : to Alexander Clark. (American Textile History Museum Library). WorldCat record id: 48448203 Goodwin was an American from Hampden County, Mass. From the description of Patent, 1871, December 29 : to Charles Jordan Goodwin. (American Textile History Museum Library). WorldCat record id: 48448262 ...