CH564172A5CH567374ACH567374ACH564172A5CH 564172 A5CH564172 A5CH 564172A5CH 567374 ACH567374 ACH 567374ACH 567374 ACH567374 ACH 567374ACH 564172 A5CH564172 A5CH 564172A5
Authority
CH
Switzerland
Application number
CH567374A
Original Assignee
Langman Eng Co Ltd
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 Langman Eng Co LtdfiledCriticalLangman Eng Co Ltd
Publication of CH564172A5publicationCriticalpatent/CH564172A5/xx