PARKER, Circuit Judge.
This is an appeal in a suit which asked relief on account of the infringement of fifteen patents relating to locking devices for the doors of drop bottom or hopper bottom railroad cars. Four of these patents and a number of the claims of the remaining eleven were withdrawn from suit at the time of the hearing in the court below. Three of the patents were held valid and infringed as to the claims involved; and the defendant has not appealed from...
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