Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Inventor
Charles Barker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of GB190612777ApublicationCriticalpatent/GB190612777A/en
12,777. Barker, C., [trading as Barker & Son, F.]. June 1. Compasses, magnetic. -In a pocket compass, a broad needle a having pointed extremities is coated with luminous paint. The hinged cover or cap f carries a magnifying-lens g. The card and needle are protected by a cover-glass c.
GB190612777D1906-06-011906-06-01Improvements in Magnetic Compasses.
ExpiredGB190612777A
(en)