Diamond adjustable patent #

[ganymede]

Does anyone know what the number for Diamonds late 70's or early 80's adjustable patent was?
Been looking (and wandering )over an hr now and I can't find it.

 

[woody 73]

Ganymede scroll down to the very bottom and start looking I found a 1958 & 1959 patent date for diamond but it is late and I am tired.

http://www.google.com/patents/US8695462

Could you now do me a super big favor I have a large plain Jane looking drill bit nothing exciting just a drill bit but the darn thing has a patent date of July 18th, 1916. After tons of searching I can not find out what the patent is for on that drill bit maybe you will have better luck.

Happy hunting.

 

[ganymede]

Hi Woody.
The only patent I could find on that date was for a drilling machine, not the bit.
US1191915A
I'll keep looking though.
Still can't find that Diamond patent either.
I remember seeing some Snap On adjustables that were marked patented but no number.