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
GB19335/21A
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
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Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Publication of GB166553ApublicationCriticalpatent/GB166553A/en
166,553. Costovici, N. B. July 17, 1920, [Convention date]. Protractors.-A protractor 1 is provided with a ruler 3 pivoting about the centre of the protractor 2, the ruler 3 being transparent and provided on the side in contact with the graduated arc with a radial line 5 and with a hole 6 for a marking point. The outer end of the ruler 3 is thickened on its under side so that it forms a continuous surface with the underside of the protractor.
GB19335/21A1920-07-171921-07-18Improvements in protractors
ExpiredGB166553A
(en)