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Hilger and Watts Ltd

Hilger and
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2853664A Digital servosystem for positioning an adjustable member Expired / Lapsed 1956-06-13 1958-09-23 0 Details
US2636855A Method of producing photoconductive coatings Expired / Lapsed 1948-10-18 1953-04-28 2 Details