Petition of George Fowler and the administrators of the Estate of De Grass Fowler, deceased, praying an extension of the patent for an improvement in machinery for punching metal
Petition of George Fowler and the administrators of the Estate of De Grass Fowler, deceased, praying an extension of the patent for an improvement in machinery for punching metal
Details
- OL Work ID
- OL7574035W
Subjects
Machinery industryMetal tradePatents