Improvements in the construction of knobs or handles of door locks, and in the mode of connecting same with the sliding bolts thereof for advancing and drawing back said bolts. (Communicated by Jean Baptiste Poisot.) Being British Patent Number: 3239 published: 02 December 1862

BROWNE, BENJAMIN

Published by London Eyre and Spottiswood published at the Great Seal Patent Office c, 1862
Condition: Used - Good

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