"Improvements on Submarine Gold Mining Apparatus," Mar 7, 2010 21:19:25 GMT 12 Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by RKC on Mar 7, 2010 21:19:25 GMT 12 "Improvements on Submarine Gold Mining Apparatus,"www.collectionscanada.gc.ca/innovations/023020-2550-e.htmlRegards,Rob (RKC)