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3D Systems Inc

3D Systems
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US4996010A Methods and apparatus for production of three-dimensional o… Expired / Lapsed 1988-04-18 1991-02-26 21 Details
US4929402A Method for production of three-dimensional objects by stere… Expired / Lapsed 1989-04-19 1990-05-29 40 Details
US4575330A Apparatus for production of three-dimensional objects by st… Expired / Lapsed 1984-08-08 1986-03-11 52 Details