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Alfred Hofmann & Co

Alfred Hof

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2438365A	Stop means for textile apparatus and the like	Expired / Lapsed	1944-11-17	1948-03-23	0	Details
US2162209A	Lamp sealing-in and exhausting machine	Expired / Lapsed	1937-05-17	1939-06-13	0	Details
US1989897A	Sealing-in and exhausting apparatus	Expired / Lapsed	1933-06-30	1935-02-05	0	Details
US1947449A	Filament making machine	Expired / Lapsed	1930-08-21	1934-02-20	0	Details