ChatterBank4 mins ago
locks and keys
how do you date old locks and keys
Answers
Without going back to ancient times, this article covers the development of the 'modern' lock and key:
http:// science. jrank. org/ pages/ 3990/ Lock- Key- M odern- locks. html
18:55 Thu 13th Aug 2009
Without going back to ancient times, this article covers the development of the 'modern' lock and key:
http://science.jrank.org/pages/3990/Lock-Key-M odern-locks.html
http://science.jrank.org/pages/3990/Lock-Key-M odern-locks.html
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