Patent US-1905-780639

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Year filed 1904
Year granted 1905
Office US
Patent number 780639
Inventors Herbert Fitzroy Clayton
Inventor country GB
Applicant person Herbert Fitzroy Clayton
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Fog signalling apparatus for railways
English title Fog signalling apparatus for railways
Tech fields communication
Filing date July 28, 1904
Full specification filed date
Application number 1904218583
Grant date January 24, 1905
Granted? Yes
Publication date
Supplementary to patent
Related to aircraft? No
Serial number
Patent agent John P. O'Donnell
Assigned to
National tech categories
IPCs
CPCs CPC B64C3/48
Family year 1904
First filing? Yes
Cites these patents
Citations from after 1930
Application ID 46896669
INPADOC family ID 43725351
Number of text pages
Number of diagram pages
Number of figures
Number of claims