Urine & rust damage to floor?

I have an old strip floor (NY area, aprox 75 years old, pine, long-leaf pine or similar) that has been covered with linoleum for probably most of it's existence. My aging dog has taken to relieving himself in one area that just happens to be over a joint in the floor covering that was tacked down with a narrow steel strip to keep the edges from curling. In spite of my diligent efforts to have the dog refrain from peeing in the house, or immediately moping and cleaning the area, a 50+ year old linoleum floor ('errlcloth as my Irish grandma used to say) Anyway, after stripping the disintegrating floor covering off the floor, there is an area that is stained dark due to the urine damage and I want to try to brighten/restore the area to as close to original as possible. Has anyone had any experience with any product that works particularly well. I have seen different bleaching products that are also meant to help restore weathered wood, but I'm not sure that they would be the best bet for my problem. And please, shooting the dog is off the table. But I am trying to relegate him to a different, less vulnerable area:-) Thanks-
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Yes a wood bleach will work. I had a similar problem but in my case it was my baby daugther that peed on the floor. The bleach got rid of the dark stain. You may need to apply it a couple of times. I had to do some sanding too.
Peter C. Goodman wrote:

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Peter, Thanks for the reply. I was going to use a commercial product available in my local big box, but was hoping that someone could share a little know "trick" with my that might do a better job. I've used the wood bleach/restorer but was hoping for something that may provide "better" results. I guess that it's back to the bleach. Thanks again:-)

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-Pete-

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