Difference between revisions of "Patent US-1900-648571"

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; Sources: PTO 89-1.51 [http://worldwide.espacenet.com/publicationDetails/biblio?FT=D&CC=US&NR=648571 espacenet] device for machining railroad track  Inventor location (imputed): Chicago, IL, Cook county, IL (FIPSloc=17031)

Revision as of 11:58, 15 November 2016


Year filed 1900
Year granted 1900
Office US
Patent number 648571
Inventors Frank O. ORTENGREN
Inventor country US
Applicant person
Applicant firm
Applicant type
Applicant is inventor? 1
Original title Railroad-rail-end grinder
English title Railroad-rail-end grinder
Tech fields
Filing date 1900-01-08
Full specification filed date
Application number
Grant date 1900-05-01
Granted? 1
Publication date
Supplementary to patent
Related to aircraft? No
Serial number 711
Patent agent
Assigned to
National tech categories
IPCs
CPCs
Family year 1900
First filing?
Cites these patents
Citations from after 1930
Application ID
INPADOC family ID
Number of text pages
Number of diagram pages
Number of figures
Number of claims
Sources
PTO 89-1.51 espacenet device for machining railroad track Inventor location (imputed): Chicago, IL, Cook county, IL (FIPSloc=17031)