Back to Homepage

Blittkowski, Gustav Adolph, and Hoffman, Frederick William

Name Street Town State From To
Blittkowski, Gustav Adolph, and Hoffman, Frederick William   New York City New York    


Patent Date Remarks
14,488 March 25, 1856 Patent drawing
Specification
Specification 2nd page
14,710 April 22, 1856 Patent drawing
Patent drawing 2nd page
Specification
Specification 2nd page
Specification 3rd page
17,136 April 28, 1857 Patent drawing
Specification
Specification 2nd page


Contract for
   


Product
Non production was made or is known