File:Robert Marsden Improvements in Pulley Blocks - DPLA - 5d3229cc909c79be1e3607e22a435c24 (page 2).jpg

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Robert Marsden Improvements in Pulley Blocks (

)

Creator

Department of the Interior. Patent Office. (1849 - 1925)

Title

Robert Marsden Improvements in Pulley Blocks

Date

4 July 1871

Collection

National Archives at College Park - Cartographic
Parent institution	National Archives at College Park
Location	College Park , United States of America
Authority file	: Q59661038 NAID: 29

Source/Photographer

This file was contributed to Wikimedia Commons by National Archives and Records Administration as part of a cooperation project. The donation was facilitated by the Digital Public Library of America, via its partner Digital Public Library of America.

Public domain	This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.	United States
	This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.