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Application filed by J H Westlake, C L AinsworthfiledCriticalJ H Westlake
Priority to DK29178ApriorityCriticalpatent/DK150747C/en
Publication of DK29178ApublicationCriticalpatent/DK29178A/en
Publication of DK150747BpublicationCriticalpatent/DK150747B/en
Application grantedgrantedCritical
Publication of DK150747CpublicationCriticalpatent/DK150747C/en