CH442522A -
Process for the manufacture of electric lamps
- Google Patents
Process for the manufacture of electric lamps
Info
Publication number
CH442522A
CH442522ACH1557766ACH1557766ACH442522ACH 442522 ACH442522 ACH 442522ACH 1557766 ACH1557766 ACH 1557766ACH 1557766 ACH1557766 ACH 1557766ACH 442522 ACH442522 ACH 442522A
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 Iwasa YoichirofiledCriticalIwasa Yoichiro
Priority to CH1557766ApriorityCriticalpatent/CH442522A/en
Publication of CH442522ApublicationCriticalpatent/CH442522A/en