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Brown David & Sons Ltd

Brown Davi

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
GB630848A	Improvements in or relating to devices for measuring surfac…	Expired / Lapsed	1945-05-04	—	0	Details
GB587252A	Improvements in or relating to transmission gear	Expired / Lapsed	1944-10-30	—	0	Details
GB480868A	Improvements in or relating to devices for measuring or tes…	Expired / Lapsed	1936-09-02	—	0	Details
US1635103A	Expanding reamer	Expired / Lapsed	1926-04-22	1927-07-05	0	Details