Resource Type
States
3 Matching Results
Results open in a new window/tab.
Results:
1 - 3 of
3
Method of Treating Ores.
Patent for "new and useful Improvements in methods of Treating Ores, of which the following is a specification. The present invention relates to a method of treating ores carrying gold and silver values in any form amenable to cyanid treatment or flotation" (lines 6-12).
Date:
May 8, 1917
Creator:
Friberger, Harry Louis
System:
The Portal to Texas History
Locking Device for Car-Doors.
Patent for a locking device for a sliding train car capable of locking automatically upon close, including illustrations.
Date:
May 9, 1916
Creator:
Tierney, Henry J.
System:
The Portal to Texas History
Sash-Fastener.
Patent for new and improved sash-fastener so as to "lock the sash when elevated as well as closed" (line 15 & 16), including illustrations.
Date:
May 6, 1902
Creator:
Neher, John F. & Neher, Noah N.
System:
The Portal to Texas History